CN114524849A - Guanidyl metal halogen complex luminescent material and preparation method and application thereof - Google Patents
Guanidyl metal halogen complex luminescent material and preparation method and application thereof Download PDFInfo
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- CN114524849A CN114524849A CN202111394064.0A CN202111394064A CN114524849A CN 114524849 A CN114524849 A CN 114524849A CN 202111394064 A CN202111394064 A CN 202111394064A CN 114524849 A CN114524849 A CN 114524849A
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- membered heterocycloalkyl
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 41
- 239000002184 metal Substances 0.000 title claims abstract description 41
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 31
- 150000002367 halogens Chemical class 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- ZRALSGWEFCBTJO-UHFFFAOYSA-O guanidinium Chemical compound NC(N)=[NH2+] ZRALSGWEFCBTJO-UHFFFAOYSA-O 0.000 claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 57
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 46
- 239000001257 hydrogen Substances 0.000 claims description 41
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 30
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 24
- -1 guanidinium metal halide Chemical class 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 13
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 229910052794 bromium Inorganic materials 0.000 claims description 10
- 229910052801 chlorine Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 229910001507 metal halide Inorganic materials 0.000 claims description 9
- 229910052745 lead Inorganic materials 0.000 claims description 8
- 229910052787 antimony Inorganic materials 0.000 claims description 7
- 125000005842 heteroatom Chemical group 0.000 claims description 7
- 125000004429 atom Chemical group 0.000 claims description 6
- 150000004820 halides Chemical class 0.000 claims description 6
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000002757 morpholinyl group Chemical group 0.000 claims description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 1
- 125000002795 guanidino group Chemical group C(N)(=N)N* 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 60
- 239000013078 crystal Substances 0.000 description 55
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 39
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 32
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 29
- 239000000243 solution Substances 0.000 description 27
- 238000001816 cooling Methods 0.000 description 25
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 21
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 13
- 238000005406 washing Methods 0.000 description 13
- 238000002189 fluorescence spectrum Methods 0.000 description 12
- 238000000227 grinding Methods 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 11
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 10
- 238000005303 weighing Methods 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- 230000005284 excitation Effects 0.000 description 8
- 150000002431 hydrogen Chemical group 0.000 description 8
- 238000006862 quantum yield reaction Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 230000001052 transient effect Effects 0.000 description 7
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 6
- 229910021568 Manganese(II) bromide Inorganic materials 0.000 description 6
- 238000000295 emission spectrum Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 150000002357 guanidines Chemical class 0.000 description 5
- 229910000464 lead oxide Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 125000006582 (C5-C6) heterocycloalkyl group Chemical group 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- ZASWJUOMEGBQCQ-UHFFFAOYSA-L dibromolead Chemical compound Br[Pb]Br ZASWJUOMEGBQCQ-UHFFFAOYSA-L 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004467 single crystal X-ray diffraction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- LLQHSBBZNDXTIV-UHFFFAOYSA-N 6-[5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-4,5-dihydro-1,2-oxazol-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC1CC(=NO1)C1=CC2=C(NC(O2)=O)C=C1 LLQHSBBZNDXTIV-UHFFFAOYSA-N 0.000 description 1
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- HBRQLWCXJABKBQ-UHFFFAOYSA-J tetrabromoplumbane Chemical compound Br[Pb](Br)(Br)Br HBRQLWCXJABKBQ-UHFFFAOYSA-J 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000005958 tetrahydrothienyl group Chemical group 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F13/00—Compounds containing elements of Groups 7 or 17 of the Periodic System
- C07F13/005—Compounds without a metal-carbon linkage
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/003—Compounds containing elements of Groups 4 or 14 of the Periodic System without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
- C07F9/90—Antimony compounds
- C07F9/902—Compounds without antimony-carbon linkages
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/18—Metal complexes
- C09K2211/188—Metal complexes of other metals not provided for in one of the previous groups
Abstract
The invention provides a guanidyl metal halogen complex luminescent material and a preparation method and application thereof. Specifically, the invention provides a guanidinium metal halogen complex with a structure shown in formula I or formula I', and the compound has good luminous performance and a simple preparation method, and is beneficial to industrial production.
Description
Technical Field
The invention belongs to the field of fluorescent powder and preparation thereof, and particularly relates to a guanidyl metal halogen complex luminescent material and a preparation method and application thereof.
Background
Due to the excellent luminescence property, the fluorescent powder is widely applied to weak illumination light sources and noctilucent materials, particularly LED illumination. The optical properties of the phosphor have a direct effect on the performance of the LED device. At present, the commercialized fluorescent powder is yellow fluorescent powder and red, green and blue fluorescent powder, the spectral distribution of the fluorescent powder is single, the display index is low, and the design and synthesis of the fluorescent powder with high performance are necessary. Therefore, it is important to develop non-rare earth phosphors with low toxicity, low cost and/or high performance.
Disclosure of Invention
The invention aims to solve the technical problem that the fluorescent luminescent material in the prior art has a single structure, so that a guanidinium metal halogen complex with a brand-new structure, which can be used as a luminescent material, is provided.
The invention provides a guanidinium metal halogen complex with a structure shown as a formula I or a formula I':
[(GuaI+H)+]mMp+(X-)q
formula I
[(GuaII+2H)2+]nMx+(X-)y
Formula I'
Wherein, GuaI has formula II, III or a tautomer thereof, GuaII has formula III or a tautomer thereof:
each M is independently one of Pb, Mn, In, Bi and Sb or a combination of any two or more of the Pb, Mn, In, Bi and Sb;
p and x are the average valence of the metal M, determined by the nature of the metal, and can be 1, 2, 3, 4, 5, 6 or 7;
x is one or the combination of more than two of Cl, Br and I;
m is more than or equal to 1, q is more than or equal to 1, m is 1, 2, 3 or 4, and m + p is q;
n is more than or equal to 1, y is more than or equal to 1, n is 1, 2, 3 or 4, and 2 xn + x is satisfied;
R1、R2、R3、R4and R5Each independently is hydrogen, C1-6Alkyl, amino, C substituted by one or more amino groups1-6Alkyl, -NHC (S) NH-C1-6Alkyl, phenyl, substituted by 1 or more C1-6Phenyl substituted by alkyl, 3-to 6-membered cycloalkyl, 5-to 6-membered heterocycloalkyl, by 1 or more C1-63-6 membered cycloalkyl substituted with alkyl, or by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R1And R2Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R3And R4Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
R6、R7、R8、R9、R10、R11and R12Each independently is hydrogen, C1-6Alkyl, phenyl, substituted by 1 or more C1-6Alkyl-substituted phenyl, 3-6 membered cycloalkyl, 5-6 membered heterocycloalkyl, substituted by 1 or more C1-63-6 membered cycloalkyl substituted with alkyl, or by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R6And R7Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R8And R9Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl substituted 5-6 membered heterocyclesAn alkyl group;
the number of heteroatoms in the 5-6 membered heterocycloalkyl group is 1, 2 or 3, each heteroatom independently selected from N or O.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6Alkyl-substituted phenyl may independently be substituted by 1C1-6Alkyl-substituted phenyl, for example phenyl substituted with 1 methyl group, for example o-methylphenyl.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), the 3-to 6-membered cycloalkyl group (including 3-to 6-membered cycloalkyl groups and "substituted with 1 or more C1-6The 3-6 membered cycloalkyl group in the alkyl substituted 3-6 membered cycloalkyl group) "may be independently a cyclopropyl group, a cyclobutyl group, a cyclopentyl group or a cyclohexyl group, for example a cyclohexyl group.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), (2) the 5-to 6-membered heterocycloalkyl (including 5-to 6-membered heterocycloalkyl and "substituted with 1 or more C1-6The heteroatom in the 5-6 membered heterocycloalkyl group in the alkyl-substituted 5-6 membered heterocycloalkyl group) is 1N atom, or "1N atom and 1O atom". In some embodiments, the 5-6 membered heterocycloalkyl is morpholinyl.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6The alkyl-substituted 3-6 membered cycloalkyl group may be independently substituted by 1C1-6Alkyl substituted 36-membered cycloalkyl, for example 3-6-membered cycloalkyl substituted by 1 methyl.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6The alkyl-substituted 5-6 membered heterocycloalkyl group may independently be substituted by 1C1-6Alkyl-substituted 5-6 membered heterocycloalkyl, for example 5-6 membered heterocycloalkyl substituted with 1 methyl group.
In some embodiments, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), said C1-6Alkyl (including substituent C)1-6Alkyl) may independently be C1-4Alkyl, such as methyl, ethyl, n-propyl or isopropyl, such as methyl.
In some embodiments, each M is independently one or a combination of any two or more of Pb, Mn, and Sb.
In some embodiments, each M is independently one or a combination of two of Pb and Mn.
In some embodiments, each M is independently Pb or Mn.
In some embodiments, each M is independently Pb.
In some embodiments, each M is independently Mn.
In some embodiments, p is 2 or 3.
In some embodiments, x is 2 or 3.
In some embodiments, p is 2.
In some embodiments, x is 2.
In some embodiments, Mp+Is Mn2+、Pb2+、In3+、Bi3+Or Sb3+。
In some embodiments, Mp+Is Mn2+Or Pb2+。
In some embodiments, Mx+Is Mn2+、Pb2+、In3+、Bi3+Or Sb3+。
In some embodiments, Mx+Is Mn2+Or Pb2+。
In some embodiments, Mx+Is Sb3+。
In some embodiments, Mx+Is Sb3+。
In some embodiments, X is one or a combination of both Cl and Br.
In some embodiments, m is 1, 2, or 3.
In some embodiments, m is 1 or 2, e.g., 2.
In some embodiments, n is 1 or 2, e.g., 1.
In some embodiments, q is 4 or 6.
In some embodiments, q is 4.
In some embodiments, y is 4.
In some embodiments, R1、R2、R3、R4And R5At least one of which is hydrogen. In some embodiments, R1、R2、R3、R4And R5At least two of which are hydrogen. In some embodiments, R1、R2、R3、R4And R5At least three of which are hydrogen. In some embodiments, R1、R2、R3、R4And R5At least four of which are hydrogen.
In some embodiments, R1、R2、R3、R4And R5At least one of which is not hydrogen. In some embodiments, R1、R2、R3、R4And R5At least two of which are not hydrogen. In some embodiments, R1、R2、R3、R4And R5At least three of which are not hydrogen. In some embodiments, R1、R2、R3、R4And R5At least four of which are not hydrogen.
GuaI has the structure of formula II or a tautomer thereof;
in some embodiments, R1And R2Independently hydrogen, phenyl, by 1 or more C1-6Phenyl substituted by alkyl, 3-to 6-membered cycloalkyl, or by 1 or more C1-6Alkyl-substituted 3-to 6-membered cycloalkyl.
In some embodiments, R3And R4Independently hydrogen, phenyl, or substituted by 1 or more C1-6Alkyl-substituted phenyl;
or, R3And R4Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl.
In some embodiments, R5Is hydrogen, 3-6 membered cycloalkyl or substituted by 1 or more C1-6Alkyl-substituted 3-6 membered cycloalkyl.
In some embodiments, the formula II structure may be formula II-1:
wherein R is1、R3、R4And R5As defined in any of the aspects of the invention;
for example, R1May be 3-6 membered cycloalkyl or substituted by 1 or more C1-6Alkyl-substituted 3-6 membered cycloalkyl;
for example, R5May be 3-6 membered cycloalkyl or substituted by 1 or more C1-6Alkyl-substituted 3-6 membered cycloalkyl;
for example, R3And R4Can be combined withThe N atoms to which they are attached together form a 5-6 membered heterocycloalkyl group or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl.
In some embodiments, the formula II structure may be formula II-2:
wherein R is1And R4As defined in any of the aspects of the invention;
for example, R1And R4Independently phenyl or substituted by 1 or more C1-6Alkyl-substituted phenyl.
In some embodiments, R6、R7、R8、R9、R10、R11And R12At least one of which is hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least two of which are hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least three of which are hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least four of which are hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least five of which are hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least six of which are hydrogen.
In some embodiments, R6、R7、R8、R9、R10、R11And R12At least one of which is not hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least two of which are not hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least three of which are not hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least four of which are not hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least five of which are not hydrogen. In some embodiments, R6、R7、R8、R9、R10、R11And R12At least six of which are not hydrogen.
In some embodiments, R6Is hydrogen.
In some embodiments, R7Is hydrogen.
In some embodiments, R10Is hydrogen.
In some embodiments, R11Is hydrogen.
In some embodiments, R12Is hydrogen.
In some embodiments, R6、R7、R10、R11And R12Is hydrogen, R8And R9Is as defined above, and R8And R9Not hydrogen at the same time.
In some embodiments, R8And R9Each independently of the other is hydrogen, C1-6Alkyl, phenyl, or substituted by 1 or more C1-6Alkyl-substituted phenyl, and R8And R9Not hydrogen at the same time;
or, R8And R9Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl.
In some embodiments, R8And R9Independently is C1-6An alkyl group;
or, R8And R9One is hydrogen, one is phenyl or substituted by 1 or more C1-6Alkyl-substituted phenyl;
or, R8And R9Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl.
In some embodiments, the formula III may be formula III-1:
wherein R is6、R8、R9、R11And R12As defined in any of the aspects of the invention.
In some embodiments, the formula III can be formula III-2:
wherein R is6、R8And R9As defined in any of the aspects of the invention.
In some embodiments, the formula III can be formula III-3:
wherein R is8And R9As defined in any of the aspects of the invention;
for example, R8And R9Can be independently hydrogen or C1-6Alkyl, phenyl, or substituted by 1 or more C1-6Alkyl-substituted phenyl, and R8And R9Not hydrogen at the same time;
or, R8And R9Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl.
In some embodiments, GuaI has any one of the following structures or a tautomer thereof:
in some embodiments, GuaII has any one of the following structures or a tautomer thereof:
in some embodiments, GuaII has any one of the following structures or a tautomer thereof:
in some embodiments, the guanidinium metal halide complex of formula I has the structure:
[(GuaI+H)+]mMp+(X-)q
Mp+is Pb2+Or Mn2+Such as Mn2+；
m is 2;
q is 4;
x is one or a combination of Cl and Br, such as Br;
GuaI has the structure of formula II-1, II-2, III-3 or tautomers thereof, as described above.
In some embodiments, the guanidinium metal halogen complex of the structure of formula I has the structure:
[(GuaI+H)+]mMp+(X-)q
Mp+is Sb3+；
m is 3;
q is 6;
x is one or a combination of Cl and Br, such as Cl;
GuaI has the structure of formula II-1, II-2 or tautomers thereof as described above, for example formula II-2 or tautomers thereof.
In some embodiments, the guanidinium metal halide complexes of the structure of formula I' have the structure:
[(GuaII+2H)2+]nMx+(X-)y
Mx+is Pb2+Or Mn2+E.g. Pb2+；
n is 1;
y is 4;
x is one or the combination of Cl and Br;
GuaII has the structure of formula III-3 above or a tautomer thereof.
In some embodiments, the guanidinium metal halide complex of formula I has the structure:
in some embodiments, the guanidinium metal halide complex of formula I has the structure:
in some embodiments, the guanidinium metal halide complexes of the structure of formula I' have the structure:
the invention also provides a crystal form of the following guanidinium metal halogen complex:
it has the following unit cell structure:
preferably, the first and second electrodes are formed of a metal,
the invention also provides a crystal form of the following guanidinium metal halogen complex:
it has the following unit cell structure:
preferably, the first and second electrodes are formed of a metal,
the invention also provides a crystal form of the following guanidinium metal halogen complex:
it has the following unit cell structure:
preferably, the first and second electrodes are formed of a metal,
the invention also provides a preparation method of the guanidinium metal halogen complex, which comprises the following steps: and (2) reacting GuaI or GuaII with halide MX (MX does not represent a molecular formula structure and is only used for representing the halide formed by M and X) of metal M in the presence of HX to obtain the guanidinium metal halogen complex.
In some embodiments, the halide of metal M MX is generated in situ by reacting an oxide of metal M with HX.
In some embodiments, the molar ratio of GuaI to halide MX is preferably m: 1.
In some embodiments, the molar ratio of GuaII to halide MX is preferably n: 1.
In some embodiments, HX is preferably in excess, for example the molar ratio of HX to GuaII can be from 10:1 to 30: 1.
In some embodiments, the reaction is preferably carried out in an aqueous solution.
In some embodiments, the reaction is preferably carried out at a temperature of from 100 ℃ to 110 ℃.
In some embodiments, the reaction is preferably carried out for 2 to 3 hours.
In some embodiments, after the reaction is completed, the method further comprises a post-treatment step, wherein the post-treatment step comprises: cooling the reaction solution to 20-30 deg.C, separating out precipitated solid, washing the obtained solid with organic solvent (such as diethyl ether or ethyl acetate), and drying to obtain the final product.
The invention also provides application of the guanidinium metal halogen complex as a luminescent material. It can be applied in LED devices.
In the present invention, the term "alkyl" refers to a saturated straight-chain or branched-chain hydrocarbon group such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl and the like.
In the present invention, the term "cycloalkyl" refers to a saturated cyclic hydrocarbon group such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and the like.
In the present invention, the term "heterocycloalkyl" refers to a group formed by replacing at least one carbon atom in a cycloalkyl group with a heteroatom other than a carbon atom, such as morpholinyl, tetrahydrofuryl, tetrahydrothienyl, and the like.
In the present invention, the term "substituted" means that a hydrogen atom in a group is replaced with a substituent. When multiple substituents are present, each substituent is independent of the other. E.g. by 1 or more C1-6Alkyl-substituted phenyl radicals include
And so on.
It will be understood by those skilled in the art that tautomers and stereoisomers of the complexes of the invention may exist, which are included within the scope of the invention.
The above preferred conditions can be arbitrarily combined to obtain preferred embodiments of the present invention without departing from the common general knowledge in the art.
The reagents and starting materials used in the present invention are commercially available.
The positive progress effects of the invention are as follows: a guanidinium metal halogen complex with a completely new structure is provided, which can be used as a luminescent material and has one or more of the following technical effects:
(1) the light emission wavelength range is controllable. The fluorescence property of the organic guanidine can be regulated and controlled by regulating and controlling the type of metal, the type and the proportion of halogen and the molecular structure of the organic guanidine.
(2) The emission wavelength can be controlled to have a wide coverage range which can reach 400-900nm, and white, green and orange luminescence can be realized.
(3) Can be expanded to lead-free systems, and metals such as Mn, In, Bi, Sb and the like can obtain the fluorescent powder material with excellent luminescent property.
(4) The preparation method is simple, has low requirements on equipment for synthesis, is easy for mass synthesis, and is suitable for industrial production.
Drawings
FIG. 1 shows the multiple hydrogen bonding structure of the phosphor obtained in example 1 of the present invention. Wherein, the picture A is a crystal photograph of the phosphor obtained in example 1; FIG. B shows the molecular formula of organic guanidine compounds used in the synthesis of phosphor; the diagram C indicates that the organic guanidine compound and the inorganic metal framework interact through supermolecule; graph D indicates the degree of distortion of the crystal structure of the material; graph E refers to the distance between inorganic layers.
FIG. 2 is an emission spectrum of the phosphor obtained in example 1 of the present invention, with an excitation wavelength of 365 nm.
FIG. 3 is a spectrum of the emission of the phosphor obtained in example 2 of the present invention, with an excitation wavelength of 365 nm.
FIG. 4 is an emission spectrum of the phosphor obtained in example 3 of the present invention, with an excitation wavelength of 365 nm.
FIG. 5 is an emission spectrum of the phosphor obtained in example 4 of the present invention, with an excitation wavelength of 365 nm.
FIG. 6 is a spectrum of an emission spectrum of the phosphor obtained in example 5 of the present invention, with an excitation wavelength of 365 nm.
FIG. 7 is a CIE 1931 color coordinate diagram corresponding to the phosphors obtained in examples 1-5 of the present invention.
FIG. 8 is a photograph showing white light emitted from a commercial UV LED (365 nm wavelength) coated with the white light fluorescent powder obtained in example 5 of the present invention.
FIG. 9 is a spectrum of green phosphor of example 6, with an excitation wavelength of 365 nm.
FIG. 10 is a schematic diagram of a single crystal structure of the green-light phosphor obtained in example 6 of the present invention.
FIG. 11 is an optical photograph under ultraviolet light of the green fluorescent powder obtained in example 6 of the present invention.
FIG. 12 is a graph showing the emission spectra of phosphors obtained in examples 7 to 11 of the present invention, with an excitation wavelength of 365 nm.
FIG. 13 shows the crystal structure of the material of the phosphor obtained in example 12 of the present invention.
FIG. 14 is an emission spectrum of a phosphor obtained in example 12 of the present invention, with an excitation wavelength of 365 nm.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions. Various changes or modifications may be effected therein by one skilled in the art, and equivalents may be made thereto without departing from the scope of the invention as defined in the claims appended hereto.
Example 1
Weighing lead bromide PbBr according to the stoichiometric ratio of 1:120.1mmol and a guanidine derivative
(abbreviated as MF)0.1mmol, the above starting materials were mixed and placed in 2mL of HBr hydrobromide (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the separated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity cold white crystal.
Crystal data were collected by a japanese physical single crystal X-ray diffractometer: rigaku R-AXIS RAPID, graphite monochromator, molybdenum target wavelength of
The test temperature was 293K. The resolution of the crystal structure is completed by software SHELXTL-97 to obtain the molecular formula of the fluorescent powder C4H13Br4N5Pb, abbreviated as MF2+PbBr4(MF2+＝C4H13N5 2+). Grinding to obtain high-purity rulerThe size of the small cold white light fluorescent powder is 10 mu m.
Table 1: the obtained white light phosphor MF2+PbBr4Crystal data of
aR1＝Σ||Fo|-|Fc||/Σ|Fo|；bwR2＝Σ[w(Fo 2-Fc 2)2]/Σ[w(Fo 2)2]1/2.
The multiple hydrogen bonding structure of the resulting phosphor is shown in fig. 1.
The fluorescence emission spectrum of the phosphor is measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 2. The emission wavelength coverage range of the fluorescent powder is 400-700nm, and the fluorescence peak position is 453 nm.
Lead oxide PbO is used to replace lead bromide PbBr2The fluorescent powder can be synthesized.
Example 2
Weighing 0.1mmol of lead oxide PbO and one guanidine derivative according to the stoichiometric ratio of 1:1
(MF)0.1 mmol. The above materials were mixed and placed in 0.62mL HBr (48 wt.% H)2O) and 1.38mL hydrochloric acid HCl (37 wt.% H)2O), wherein the molar ratio of HBr to HCl is 1:3, heating to 100 ℃, and stirring for 2 hours to completely dissolve the HBr and the HCl; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity white light crystal MF2+PbCl3Br; grinding to obtain high purity and small sizePhosphor, the size of the phosphor is 10 μm.
The fluorescence emission spectrum of the phosphor is measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 3. The emission wavelength coverage range of the fluorescent powder is 400-700nm, and the fluorescence peak positions are 441nm and 486 nm.
The emission wavelength coverage and the fluorescence peak position of the fluorescent powder can be adjusted by controlling the proportion of halogen.
Example 3
Weighing 0.1mmol of lead oxide PbO and one guanidine derivative according to the stoichiometric ratio of 1:1
(MF)0.1 mmol. The above materials were mixed and placed in 0.51mL HBr (48 wt.% H)2O) and 1.49mL of hydrochloric acid HCl (37 wt.% H)2O), wherein the molar ratio of HBr to HCl is 1:4, heating to 100 ℃, and stirring for 2 hours to completely dissolve; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity white light crystal MF2+PbCl3.2Br0.8(ii) a Grinding to obtain the white light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor is measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 4. The emission wavelength coverage range of the fluorescent powder is 400-700nm, and the fluorescence peak positions are 437nm and 490 nm.
Example 4
Lead oxide PbO 0.1mmol and guanidine derivative in the stoichiometric ratio of 1:1
(MF)0.1 mmol. The above materials were mixed and placed in 0.32mL HBr (48 wt.% H)2O) and 1.68mL hydrochloric acid HCl (37 wt.% H)2O), wherein the molar ratio of HBr to HCl is 1:7, heating to 100 ℃, and stirring for 2 hours to completely dissolve the HBr and the HCl; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process;collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity white light crystal MF2+PbCl3.5Br0.5(ii) a Grinding to obtain the white light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 5. The emission wavelength coverage range of the fluorescent powder is 400-700nm, and the fluorescence peak positions are 447nm and 505 nm.
Example 5
Lead oxide PbO 0.1mmol and guanidine derivative in the stoichiometric ratio of 1:1
(MF)0.1 mmol. The above materials were mixed and placed in 0.26mL HBr (48 wt.% H)2O) and 1.74mL hydrochloric acid HCl (37 wt.% H)2O), wherein the molar ratio of HBr to HCl is 1:9, heating to 100 ℃, and stirring for 2 hours to completely dissolve the HBr and the HCl; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity white light crystal MF2+PbCl3.6Br0.4(ii) a Grinding to obtain the white light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor measured by a steady state fluorescence spectrometer Edinburgh FLS920 is shown in FIG. 6. The coverage range of the emission wavelength of the fluorescent powder is 400-800nm, the emission peak is-580 nm, and the half-peak width is larger than 200 nm.
The phosphors obtained in examples 1 to 5 have a wide emission wavelength coverage and are broad emission luminescence.
The CIE 1931 color coordinate diagrams of the phosphors obtained in examples 1-5 are shown in FIG. 7. The emission wavelength and the fluorescence peak position of the fluorescent powder obtained in the above examples 1 to 5 can be adjusted by adjusting the proportion of halogen. The coverage range of the fluorescence emission wavelength of 400-800nm can be realized, and the whole visible light spectrum is almost covered; fluorescence emission from cold white to warm white can be achieved.
A photograph of a white light-emitting phosphor powder coated on a commercial UV LED (365 nm wavelength) obtained in example 5 is shown in FIG. 8.
Example 6
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua1-DMP)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal.
Crystal data were collected by a japanese physical single crystal X-ray diffractometer: rigaku R-AXIS RAPID, graphite monochromator, molybdenum target wavelength of
The test temperature was 293K. The analysis of the crystal structure is completed by software SHELXTL-97, and the molecular formula of the obtained fluorescent powder is C26H28N6Br4Mn, abbreviated as (DMP)+)2MnBr4(DMP+＝C13H14N3 +) (ii) a Grinding to obtain the green-light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m. The crystal structure of the green phosphor is shown in fig. 10.
Table 2: the green light fluorescent powder (DMP) obtained by the invention+)2MnBr4Single crystal analysis data of
aR1＝Σ||Fo|-|Fc||/Σ|Fo|；bwR2＝Σ[w(Fo 2-Fc 2)2]/Σ[w(Fo 2)2]1/2.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 9. The coverage range of the emission wavelength of the fluorescent powder is 480-609nm, the emission peak is 523nm, and the half-peak width is 60 nm.
The fluorescence quantum yield of the fluorescent powder is measured to be 87.2% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
An optical photograph of the green phosphor powder under ultraviolet light is shown in fig. 11.
Example 7
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua2-DTG)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal with molecular formula of C30H36N6Br4Mn, abbreviated as (DTG)+)2MnBr4(DTG+＝C15H18N3 +). Grinding to obtain the green light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 12. The coverage range of the emission wavelength of the fluorescent powder is 450-650nm, the emission peak is 534nm, and the half-peak width is 76 nm.
The fluorescence quantum yield of the fluorescent powder is up to 80% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Example 8
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua3-DCM)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal with molecular formula of C34H64N6O2Br4Mn, abbreviated as (DCM)+)2MnBr4(DCM+＝C17H32N3O+). Grinding to obtain the green-light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 12. The emission wavelength coverage range of the fluorescent powder is 450-650nm, the emission peak is 537nm, and the half-peak width is 61 nm.
The fluorescence quantum yield of the fluorescent powder is up to 80% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Example 9
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua4-PBG)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal with molecular formula of C16H24N10Br4Mn, abbreviated as PBG+)2MnBr4(PBG+＝C8H12N5 +). Grinding to obtain the green light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 12. The emission wavelength coverage range of the fluorescent powder is 450-650nm, the emission peak is 517nm, and the half-peak width is 47 nm.
The fluorescence quantum yield of the fluorescent powder is up to 80% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Example 10
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua5-TPG)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solution, heating to 100 ℃, stirring for 2 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal with molecular formula of C18H28N10Br4Mn, abbreviated To (TPG)+)2MnBr4(TPG+＝C9H14N5 +). Grinding to obtain the green light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 12. The emission wavelength coverage range of the fluorescent powder is 450-650nm, the emission peak is 523nm, and the half-peak width is 49 nm.
The fluorescence quantum yield of the fluorescent powder is up to 80% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Example 11
According to a stoichiometric ratio of 1: 2 weighing MnBr20.1mmol and a guanidine derivative
(abbreviated as Gua6-MXD)0.2 mmol. The above raw materials were mixed and placed in 2mL hydrobromic acid (48 wt.% H)2O) solutionHeating to 100 ℃, stirring for 2 hours to completely dissolve the materials; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain high-purity green luminescent crystal with molecular formula of C12H28N10O2Br4Mn, abbreviated as (MXD)+)2MnBr4(MXD+＝C6H14N5O+). Grinding to obtain the green light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 12. The coverage range of the emission wavelength of the fluorescent powder is 450-650nm, the emission peak is 519nm, and the half-peak width is 50 nm.
The fluorescence quantum yield of the fluorescent powder is up to 80% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Example 12
According to a stoichiometric ratio of 1: 2 weighing SbCl30.1mmol and a guanidine derivative
(abbreviated as Gua1-DMP)0.2 mmol. The above raw materials were mixed and placed in 4mL hydrochloric acid (37 wt.% H)2O) solution, heating to 100 ℃, and stirring for 4 hours to completely dissolve the solution; slowly cooling the dissolved solution to room temperature, wherein crystals are separated out in the cooling process; collecting the precipitated crystal, and washing with diethyl ether or ethyl acetate for several times to obtain orange luminescent crystal with high purity.
Crystal data were collected by a japanese physical single crystal X-ray diffractometer: rigaku R-AXIS RAPID, graphite monochromator, molybdenum target wavelength of
The test temperature was 293K. The resolution of the crystal structure is completed by software SHELXTL-97 to obtain the molecular formula of the fluorescent powder C39H42Cl6SbN9Abbreviated as (DMP)+)3SbCl6(DMP+＝C13H14N3 +) (ii) a Grinding to obtain orange light fluorescent powder with high purity and small size, wherein the size of the fluorescent powder is 10 mu m. The crystal structure of the green emitting phosphor is shown in FIG. 13.
Table 3: the orange light fluorescent powder (DMP) obtained by the invention+)3SbCl6Single crystal analysis data of
aR1＝Σ||Fo|-|Fc||/Σ|Fo|；bwR2＝Σ[w(Fo 2-Fc 2)2]/Σ[w(Fo 2)2]1/2.
The fluorescence emission spectrum of the phosphor was measured by a steady state fluorescence spectrometer Edinburgh FLS920 as shown in FIG. 14. The coverage range of the emission wavelength of the fluorescent powder is 450-710nm, the emission peak is 584nm, and the half-peak width is 135 nm.
The fluorescence quantum yield of the fluorescent powder is close to 100% by combining an Edinburgh FLS920 transient stable state fluorescence spectrometer with an integrating sphere system.
Claims (10)
1. A guanidinium metal halide complex having the structure of formula I or formula I':
[(GuaI+H)+]mMp+(X-)q
formula I
[(GuaII+2H)2+]nMx+(X-)y
Formula I'
Wherein, GuaI has formula II, III or a tautomer thereof, GuaII has formula III or a tautomer thereof:
each M is independently one of Pb, Mn, In, Bi and Sb or a combination of any two or more of the Pb, Mn, In, Bi and Sb;
p and x are the average valence of the metal M;
x is one or the combination of more than two of Cl, Br and I;
m is more than or equal to 1, q is more than or equal to 1, m is 1, 2, 3 or 4, and m + p is q;
n is more than or equal to 1, y is more than or equal to 1, n is 1, 2, 3 or 4, and 2 xn + x is satisfied;
R1、R2、R3、R4and R5Each independently is hydrogen, C1-6Alkyl, amino, C substituted by one or more amino groups1-6Alkyl, -NHC (S) NH-C1-6Alkyl, phenyl, substituted by 1 or more C1-6Alkyl-substituted phenyl, 3-6 membered cycloalkyl, 5-6 membered heterocycloalkyl, substituted by 1 or more C1-63-6 membered cycloalkyl substituted with alkyl, or by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R1And R2Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R3And R4Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
R6、R7、R8、R9、R10、R11and R12Each independently is hydrogen, C1-6Alkyl, phenyl, substituted by 1 or more C1-6Alkyl-substituted phenyl, 3-6 membered cycloalkyl, 5-6 membered heterocycloalkyl, substituted by 1 or more C1-63-6 membered cycloalkyl substituted with alkyl, or by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R6And R7Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
or, R8And R9Together with the N atom to which they are attached form a 5-6 membered heterocycloalkyl, or substituted by 1 or more C1-6Alkyl-substituted 5-6 membered heterocycloalkyl;
the number of heteroatoms in the 5-6 membered heterocycloalkyl group is 1, 2 or 3, each heteroatom independently selected from N or O.
2. The guanidinium metal halogen complex of claim 1, wherein each M is independently one or a combination of any two or more of Pb, Mn, and Sb;
and/or, p is 2 or 3;
and/or, x is 2 or 3;
and/or, X is one or a combination of Cl and Br;
and/or q is 4 or 6;
and/or, y is 4;
and/or at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6Alkyl-substituted phenyl is independently substituted by 1C1-6Alkyl-substituted phenyl, for example phenyl substituted with 1 methyl group, for example o-methylphenyl;
and/or, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), the 3-6 membered cycloalkyl group is independently cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl, such as cyclohexyl;
and/or, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), the heteroatom in the 5-6 membered heterocycloalkyl group is 1N atom or "1N atom and 1O atom", for example, the 5-6 membered heterocycloalkyl group is morpholinyl;
and/or at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6Alkyl-substituted 3-6 membered cycloalkyl is independently substituted by 1C1-6Alkyl-substituted 3-6 membered cycloalkyl, for example 3-6 membered cycloalkyl substituted by 1 methyl;
and/or, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1) or more of C1-6Alkyl-substituted 5-6 membered heterocycloalkyl is independently substituted by 1C1-6Alkyl-substituted 5-6 membered heterocycloalkyl, such as 5-6 membered heterocycloalkyl substituted with 1 methyl group;
and/or, at R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11And R12In the definition of (1), said C1-6Alkyl is independently C1-4Alkyl groups, such as methyl, ethyl, n-propyl or isopropyl, such as methyl.
3. The guanidinium metal halogen complex of claim 1, wherein M isp+Is Mn2+、Pb2+、In3+、Bi3+Or Sb3+Such as Mn2+、Pb2+Or Sb3+；
And/or, Mx+Is Mn2+、Pb2+、In3+、Bi3+Or Sb3+Such as Mn2+、Pb2+Or Sb3+。
4. The guanidinium metal halogen complex of claim 1 wherein the formula II is of formula II-1 or II-2:
and/or, the formula III is formula III-3;
5. the guanidinium metal halogen complex of claim 1 wherein the GuaI has any of the following structures or its tautomeric structure:
and/or, the GuaII has any one of the following structures or a tautomer thereof:
6. the guanidinium metal halogen complex of claim 1, having the structure:
[(GuaI+H)+]mMp+(X-)q
Mp+is Pb2+Or Mn2+Such as Mn2+；
m is 2;
q is 4;
x is one or a combination of Cl and Br, such as Br;
GuaI as described in any one of claims 1-5;
or, the structure of the guanidinium metal halogen complex with the structure of formula I is as follows:
[(GuaI+H)+]mMp+(X-)q
Mp+is Sb3+；
m is 3;
q is 6;
x is one or a combination of Cl and Br, such as Cl;
GuaI as described in any one of claims 1-5;
or, the structure of the guanidinium metal halogen complex with the structure of formula I' is as follows:
[(GuaII+2H)2+]nMx+(X-)y
Mx+is Pb2+Or Mn2+E.g. Pb2+；
n is 1;
y is 4;
x is one or the combination of Cl and Br;
GuaII as claimed in any one of claims 1 to 5.
7. The guanidinium metal halogen complex of claim 1, wherein the guanidinium metal halogen complex of the structure of formula I has any one of the following structures:
and/or the guanidinium metal halogen complex of the structure of formula I' has any one of the following structures:
8. a crystalline form of a guanidinium metal halide complex of:
it has the following unit cell structure:
or, a crystalline form of a guanidinium metal halide complex as follows:
it has the following unit cell structure:
or, a crystalline form of a guanidinium metal halide complex as follows:
it has the following unit cell structure:
9. use of a guanidinium metal halogen complex of any of claims 1 to 7 or of a crystalline form of claim 8 as a luminescent material.
10. A process for the preparation of a guanidinium metal halogen complex as claimed in claim 1, comprising the steps of: reacting GuaI or GuaII with halide MX of metal M in the presence of HX to obtain the guanidino metal halogen complex;
GuaI, GuaII, M and X are as defined in any one of claims 1 to 7.
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| CN104194774A (en) * | 2014-08-26 | 2014-12-10 | 中国科学院福建物质结构研究所 | Antimony-based fluorescent material and preparation method thereof |
| CN105601671A (en) * | 2015-12-17 | 2016-05-25 | 华东师范大学 | Organic solid metal light-emitting material and preparation method |
| US20180037813A1 (en) * | 2016-08-04 | 2018-02-08 | Florida State University Research Foundation, Inc. | Organic-Inorganic Hybrid Perovskites, Devices, and Methods |
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| CN104194774A (en) * | 2014-08-26 | 2014-12-10 | 中国科学院福建物质结构研究所 | Antimony-based fluorescent material and preparation method thereof |
| CN105601671A (en) * | 2015-12-17 | 2016-05-25 | 华东师范大学 | Organic solid metal light-emitting material and preparation method |
| US20180037813A1 (en) * | 2016-08-04 | 2018-02-08 | Florida State University Research Foundation, Inc. | Organic-Inorganic Hybrid Perovskites, Devices, and Methods |
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