CN106674260B - A kind of coordination polymer and preparation method thereof containing Rare Earth Europium with photoluminescent property - Google Patents
A kind of coordination polymer and preparation method thereof containing Rare Earth Europium with photoluminescent property Download PDFInfo
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- 239000013256 coordination polymer Substances 0.000 title claims abstract description 55
- 229920001795 coordination polymer Polymers 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 229910052693 Europium Inorganic materials 0.000 title claims abstract description 18
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 12
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims abstract description 5
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims abstract description 3
- 239000003446 ligand Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- YNPNZTXNASCQKK-UHFFFAOYSA-N Phenanthrene Natural products C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 10
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 4
- 150000002602 lanthanoids Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- HRGSKQRXBGCEAZ-UHFFFAOYSA-N 4-(4-carboxy-2-nitrophenyl)-3-nitrobenzoic acid Chemical compound [O-][N+](=O)C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1[N+]([O-])=O HRGSKQRXBGCEAZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- HSSYVKMJJLDTKZ-UHFFFAOYSA-N 3-phenylphthalic acid Chemical compound OC(=O)C1=CC=CC(C=2C=CC=CC=2)=C1C(O)=O HSSYVKMJJLDTKZ-UHFFFAOYSA-N 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 10
- 238000005286 illumination Methods 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 5
- 238000012921 fluorescence analysis Methods 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000012621 metal-organic framework Substances 0.000 description 7
- 238000001338 self-assembly Methods 0.000 description 6
- 208000034486 Multi-organ failure Diseases 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000002411 thermogravimetry Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000013110 organic ligand Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- NEQFBGHQPUXOFH-UHFFFAOYSA-N 4-(4-carboxyphenyl)benzoic acid Chemical compound C1=CC(C(=O)O)=CC=C1C1=CC=C(C(O)=O)C=C1 NEQFBGHQPUXOFH-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 Heterocyclic carboxylic acid Chemical class 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- MUYSADWCWFFZKR-UHFFFAOYSA-N cinchomeronic acid Chemical class OC(=O)C1=CC=NC=C1C(O)=O MUYSADWCWFFZKR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000002447 crystallographic data Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- WJJMNDUMQPNECX-UHFFFAOYSA-N dipicolinic acid Chemical class OC(=O)C1=CC=CC(C(O)=O)=N1 WJJMNDUMQPNECX-UHFFFAOYSA-N 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
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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
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/003—Compounds containing elements of Groups 3 or 13 of the Periodic Table without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/008—Supramolecular polymers
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- 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
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- 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
- C09K2211/182—Metal complexes of the rare earth metals, i.e. Sc, Y or lanthanide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a kind of coordination polymer and its preparations containing Rare Earth Europium with photoluminescent property.The molecular formula of the coordination polymer is：C27H15N4O10Eu, the complex belong to rhombic system, space group P212121, Eu atom is in the center of the dodecahedron configuration of eight-coordinate；The fluorescence analysis of the complex shows when excitation wavelength is set at 395.5nm can occur strong emission band at 615.5nm.The coordination polymer preparation method is simply controllable, and the crystal structure using solvent-thermal method preparation is stablized.Fluorescent effect possessed by coordination polymer of the present invention can make it be applied to the numerous areas such as illumination, display, solid state laser, optical communication, optical storage and biomedical imaging, Clinics and Practices.
Description
Technical field
The invention belongs to fluorescent material technical fields, and in particular to a kind of Europium Metal polycomplexation of red fluorescence luminescent material
Close object and preparation method thereof.
Background technique
Metal organic frame (Metal-organic framework, MOF) is also referred to as used as coordination polymer, it is a kind of
The crystal material with one-dimensional, two-dimentional, three-dimensional infinite network structure being self-assembly of is passed through by organic ligand and metal center
Material.Have the rigidity of inorganic material and the flexible characteristic of organic material concurrently.Show it in terms of modern material research huge
Development potentiality and tempting development prospect.Early stage MOFs development, the O.M.Yaghi religion of Univ California-Berkeley
Award, Wenbin professor Lin etc. in the S.Kitagawa of Kyoto Univ Japan professor and University of North Carolina of U.S. church mountain branch school respectively
More detailed definition has been done to it, has been defined as follows by induction and conclusion：MOFs as it is first stability, programmable,
The class zeolitic material of crystalline state need to have the following conditions：(1) rock-steady structure is formed by coordinate bond；(2) organic by design transformation
Ligand (linker) and metal secondary construction unit (SBU) type can be with the space structures of controlled material；(3) there is good knot
Crystalline substance thus can its coordination structure of explication and steric configuration.As its name suggests, micropore metal-organic frame (MOFs) refers to frame
There is certain duct (aperture is within 2nm) filled by free solvent molecule in frame and method for subsequent processing can be passed through by hole
The porous material that guest molecule is removed without influencing frame structure in road.
There are the MOFs material that shines luminescence sites to enrich, emission wavelength range is wide, pore size and structure are adjustable, are easy to more
The advantages that functionalized modification, thus be with a wide range of applications in fields such as illumination, display, imaging, fluorescence detections.Its principle one
As be based on following four various aspects：(1) it is shone based on ligand；(2) lanthanide series metal shines；(3) electric charge transfer；(4) object induction hair
Light.
Heterocyclic carboxylic acid such as pyridine -2,6- dicarboxylic acids, 2,3- pyrazine acids, pyridine -3,4- dicarboxylic acids and 4,5- imidazole-2-carboxylic acid
Deng the structure for often being used to study coordination polymer as ligand, however, coordinate lanthanide series and 2,2 '-dinitro -4,4 '-connection
Phthalic acid (H2Nbpdc) even less people is studying.By with H2Nbpdc coordination, can form higher-dimension structure, and pass through son
Thin control pH value, it can protonate one to two hydrogen atom and form HnNbpdc (n=0,1).Therefore, deprotonation Hnnbpdc
(n=0,1) has flexible coodination modes.
Pass through H2Nbpdc and metallic element constitute rimless frame system advantageously, it has been found that and selecting H2Nbpdc has as one
Machine component part, trial, which constitutes a kind of metal-organic framework with new structure feature, there is no research.Select H2Nbpdc makees
For organic ligand, under the conditions of solvent-thermal method, the crystal generated is reacted with lanthanide series metal, show good thermal stability and compared with
Strong fluorescence, can be applied to illumination, display, solid state laser, optical communication, optical storage and biomedical imaging, diagnosis with
The numerous areas such as treatment.
Summary of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of C of three-dimensional27H15N4O10Eu
Coordination polymer and preparation method thereof has the coordination of good thermal stability and stronger fluorescence with simple controllable preparation
Polymer.
Technical solution：To achieve the above object, the present invention uses following technical scheme：
A kind of coordination polymer containing Rare Earth Europium with photoluminescent property, the molecular formula of the coordination polymer are
C27H15N4O10Eu。
Preferably, the coordination polymer is three-dimensional structure.
Preferably, the secondary building unit of the coordination polymer is：Crystal belongs to cubic system, and space group is
P212121, Eu atom is among the dodecahedron configuration of eight-coordinate in the structure.
Preferably, the excitation wavelength of the coordination polymer is 395.5nm, launch wavelength 615.5nm.It is described have it is glimmering
The Europium Metal coordination polymer of light property can be applied to illumination, display, solid state laser, optical communication, optical storage, it is biomedical at
Picture and Clinics and Practices field.
The preparation method of above-mentioned Europium Metal coordination polymer selects 2,2 '-dinitro -4,4 '-biphenyl dicarboxylic acids
(H2Nbpdc it) is used as ligand, Phen is assistant ligand, Eu (NO3)2Make metal salt, be uniformly mixed in a solvent, use is molten
The coordination polymer crystal is prepared in agent thermal method, includes the following steps：
At room temperature, by 2,2 '-dinitro -4 of ligand, 4 '-biphenyl dicarboxylic acid (H2Nbpdc) with Eu (NO3)2It mixes in a solvent
It closes uniformly, is put into reaction kettle and heats, obtain the coordination polymer crystal after cooling.
Preferably, the H2Nbpdc, Phen and La (NO3)2Molar ratio 1: 1: 1.
Preferably, the solvent is the mixture of organic solvent and water, and wherein organic solvent is DMF.
Preferably, the DMF and H2The solvent ratio of the mixed liquor of O is 1: 1-3 (v: v).
Preferably, the acid solution is 65% dense HNO3。
Preferably, the condition of the heating is 125 DEG C of heating three days.
In one preferred embodiment, using being prepared following preparation method：At room temperature, by ligand 2,2 '-two
4,4 '-biphenyl dicarboxylic acid (H of nitro-2Nbpdc) 1mmol, Phen 1mmol and Eu (NO3)21mmol in 1.5mL DMF and
1.5mL H2It is uniformly mixed in O, and the dense HNO of 0.1ml is added dropwise3.It is put into reaction kettle and heats three days for 125 DEG C, obtained after cooling described
Coordination polymer crystal.
Beneficial effect：Compared with prior art, the polycomplexation containing Rare Earth Europium with photoluminescent property provided by the invention
Object and preparation method thereof is closed, is had the following advantages that：
(1) molecular formula of the coordination polymer is C27H15N4O10Eu, the complex belong to rhombic system, space group
For P212121；
(2) coordination polymer be by under solvent-thermal method-high-temperature and high-pressure conditions-by solvent self assembly, coordination
Polymer architecture high stability, controllability are stronger, and preparation method is simple, easy to operate；
(3) fluorescence analysis of the coordination polymer shows when excitation wavelength is set at 395.5nm, can be in 615.5nm
There is strong emission band in place, sends out red fluorescence；The strong transmitting fluorescence property that the coordination polymer has allows to be applied to
The numerous areas such as illumination, display, solid state laser, optical communication, optical storage and biomedical imaging, Clinics and Practices.
Detailed description of the invention
Fig. 1 is coordination polymer C in embodiment 327H15N4O10The coordination context diagram of Eu；
Fig. 2 is coordination polymer C in embodiment 327H15N4O10The infrared spectrogram of Eu；
Fig. 3 is coordination polymer C in embodiment 327H15N4O10The thermogravimetric analysis figure of Eu；
Fig. 4 is coordination polymer C in embodiment 327H15N4O10The fluorescence analysis figure of Eu.
Specific embodiment
The present invention is further explained with reference to the accompanying drawings and examples.In following embodiments, the dense HNO of use3
For 65% dense HNO3。
Embodiment 1
When room temperature, by 1mmol Eu (NO3)2With 1mmol H2Nbpdc, 1mmol Phen are in 1.5ml DMF and 4.5ml
H2It is thoroughly mixed in O and dense HNO is added dropwise3It is clarified to solution, is put into reaction kettle, 125 DEG C of the constant temperature heating three in convection oven
It, is made a kind of coordination polymer with photoluminescent property by solvent-thermal method self assembly.
Embodiment 2
When room temperature, by 1mmol Eu (NO3)2With 1mmol H2Nbpdc, 1mmol Phen are in 1.5ml DMF and 3ml
H2It is thoroughly mixed in O and dense HNO is added dropwise3It is clarified to solution, is put into reaction kettle, 125 DEG C of the constant temperature heating three in convection oven
It, is made a kind of coordination polymer with photoluminescent property by solvent-thermal method self assembly.
Embodiment 3
When room temperature, by 1mmolEu (NO3)2And 1mmolH2Nbpdc, 1mmol Phen are in 1.5ml DMF and 1.5ml
H2It is thoroughly mixed in O and dense HNO is added dropwise3It is clarified to solution, is put into reaction kettle, 125 DEG C of the constant temperature heating three in convection oven
It, is made a kind of coordination polymer with photoluminescent property by solvent-thermal method self assembly.
By comparing above-described embodiment 1-3, temperature and ligand and metal salt under the same conditions, to solvent DMF and H2O
Volume ratio it is different and in the case where acid condition, in solvent volume than 1: 1, i.e., under the conditions of embodiment 3, obtained crystal
It is optimal.(above-described embodiment can obtain the crystal with red fluorescence property, and crystal data is optimal with embodiment 3) sheet
Material be by under solvent-thermal method-high-temperature and high-pressure conditions-by solvent self assembly, material structure high stability, and this
The structural controllability of material is stronger, and preparation method is simple, easy to operate.
Coordination polymer crystal in embodiment 3 is analyzed, chooses the monocrystalline of suitable size, room temperature under the microscope
When with through graphite monochromatised Mo K alpha rayMonocrystalline is measured on Bruker Apex II CCD diffractometer
X-ray diffraction structure, the results are shown in Table 1.Semiempirical absorption correction, cell parameter least square method are carried out with SADABS method
Determine, data convert and structure elucidation use SAINT and SHELXL program bag to complete respectively, all non-hydrogen atoms with complete matrix most
Small square law carries out anisotropy refine, and the coordination context diagram of coordination polymer is as shown in Figure 1, the central atom Eu in structure is former
Son is among the dodecahedron configuration of eight-coordinate, wherein Eu (II) and two N atoms and carboxylate oxygen atoms in Phen
It is coordinated, to constitute the 12 face face body environment slightly distorted.
The crystallographic data of the coordination polymer of 1 embodiment 3 of table preparation
To the infrared spectrum characterization of the coordination polymer in embodiment 3, as shown in Figure 2.In 839cm-1Place, have one it is strong
Absorption peak, be benzene contraposition replace absorption peak；In 1078cm-1There is a strong absorption peak, is C=O double bond stretching vibration
Absorption peak；In 1338cm-1There is a strong absorption peak, is C-N key stretching vibration absworption peak；In 1596cm-1Place, there is one
Strong absorption peak is the absorption peak of phenyl ring；In 2855cm-1Place, is the absorption peak of carboxylic acid；In 3402cm-1Place has one strong
Strong absorption peak is the absorption peak of N-O key.
To the thermogravimetric analysis characterization of the coordination polymer in embodiment 3, as shown in figure 3, can be seen that from thermogravimetric analysis
Coordination polymer has three apparent weight loss processes.It is wherein the decomposition of formic acid in coordination polymer at first, second
Place is the decomposition of ligand, is that the coordination polymer structure disintegrates collapsing at third.
Fig. 4 is that the solid fluorescence of coordination polymer is analyzed, and the fluorescence analysis of the coordination polymer shows when excitation wavelength quilt
When being set in 395.5nm, can occur strong emission band at 615.5nm, wherein there are three characteristic peaks for Rare Earth Europium tool, and its
The red fluorescence effect having, can be applicable to illumination, display, solid state laser, optical communication, optical storage and it is biomedical at
The numerous areas such as picture, Clinics and Practices.
Above embodiments only play the role of illustrating example to technical concept of the invention, can not limit the present invention with this
Protection scope, those skilled in the art modify and are equal in the spirit and scope for not departing from technical solution of the present invention
Replacement, should all fall within the scope and spirit of the invention.
Claims (7)
1. a kind of coordination polymer containing Rare Earth Europium with photoluminescent property, it is characterised in that：Point of the coordination polymer
Minor is C27H15N4O10Eu, the coordination polymer are three-dimensional structure, the secondary building unit of the coordination polymer
For：Crystal belongs to rhombic system, space group P212121, Eu atom is in the dodecahedron configuration of eight-coordinate in the structure
Center, the excitation wavelength of the coordination polymer is 395.5 nm, and launch wavelength is 615.5 nm.
2. the preparation method of the coordination polymer containing Rare Earth Europium with photoluminescent property described in claim 1, feature exist
In：The coordination polymer crystal is prepared using solvent-thermal method in the preparation method, includes the following steps：
At room temperature, by ligand 2,2'- dinitro -4,4'- biphenyl dicarboxylic acid, Phen is assistant ligand and Eu (NO3)2Molten
Agent is uniformly mixed, and acid adding to solution is clarified, and is put into reaction kettle and is heated, and obtains the coordination polymer crystal after cooling, wherein
The solvent is the mixture of organic solvent and water, and wherein organic solvent is DMF.
3. the preparation method of the coordination polymer containing Rare Earth Europium with photoluminescent property according to claim 2, special
Sign is：2,2'- dinitro -4,4'- the biphenyl dicarboxylic acid and Phen and Eu (NO3)2Molar ratio is 1:1:1.
4. the preparation method of the coordination polymer containing Rare Earth Europium with photoluminescent property according to claim 2, special
Sign is：The dense HNO that the acid solution is 65%3。
5. the preparation method of the lanthanoid metal coordination polymer according to claim 2 with photoluminescent property, it is characterised in that：
The volume ratio of the organic solvent and water is 1：1-3.
6. the preparation method of the coordination polymer containing Rare Earth Europium with photoluminescent property according to claim 2, special
Sign is：The condition of the heating is 125 DEG C and heats three days.
7. the preparation method of the coordination polymer containing Rare Earth Europium with photoluminescent property described in claim 1, feature exist
In：At room temperature, by ligand 2,1 mmol of 2'- dinitro -4,4'- biphenyl dicarboxylic acid, Phen 1 mmol and Eu (NO3)2 1
Mmol is in 1.5 mL DMF and 1.5 ml H2It is uniformly mixed in O, dense HNO is added dropwise3It is clarified to solution, is put into reaction kettle 125 DEG C
Heating three days obtains the coordination polymer crystal after cooling.
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| CN110776647B (en) * | 2019-08-28 | 2022-04-08 | 浙江工业大学 | Europium metal organic framework-based ratiometric probe and construction method and application thereof |
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| CN101759711A (en) * | 2008-12-24 | 2010-06-30 | 北京化工大学 | Synthesization and structure of inorganic-organic coordination polymer containing praseodymium |
| CN102276637A (en) * | 2011-07-06 | 2011-12-14 | 哈尔滨工业大学 | Terbium coordination polymer and its synthetic method and use |
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