CN110729090A - Multi-core single-molecule magnet - Google Patents
Multi-core single-molecule magnet Download PDFInfo
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- CN110729090A CN110729090A CN201911123441.XA CN201911123441A CN110729090A CN 110729090 A CN110729090 A CN 110729090A CN 201911123441 A CN201911123441 A CN 201911123441A CN 110729090 A CN110729090 A CN 110729090A
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- oac
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- multinuclear
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011232 storage material Substances 0.000 claims abstract description 10
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims abstract description 8
- 230000005291 magnetic effect Effects 0.000 claims abstract description 6
- 239000012453 solvate Substances 0.000 claims abstract description 3
- 239000013078 crystal Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 101001018064 Homo sapiens Lysosomal-trafficking regulator Proteins 0.000 claims description 2
- 102100033472 Lysosomal-trafficking regulator Human genes 0.000 claims description 2
- 235000010703 Modiola caroliniana Nutrition 0.000 claims description 2
- 244000038561 Modiola caroliniana Species 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- 238000000034 method Methods 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- TXWRERCHRDBNLG-UHFFFAOYSA-N cubane Chemical group C12C3C4C1C1C4C3C12 TXWRERCHRDBNLG-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/42—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of organic or organo-metallic materials, e.g. graphene
-
- 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
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/06—Cobalt compounds
- C07F15/065—Cobalt compounds without a metal-carbon linkage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention provides a multi-core monomolecular magnet, which is a complex or a solvate thereof as follows: co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6Wherein Ac represents an acetyl group. The multi-core single-element magnet provided by the invention can be used for preparing information storage materials, especially magnetic storage materials.
Description
Technical Field
The invention relates to a multi-core single-molecule magnet.
Background
A monomolecular magnet is a special organometallic compound. At a certain low temperature, it can be switched between two states of "0" (such as the direction of molecular orientation paramagnetic field) and "1" (the direction of molecular orientation counter magnetic field) like a tiny magnet, and can be used to store information. Compared to conventional magnets, single molecule magnets are significantly smaller, which means that storage devices made with such magnets have greater data storage capabilities.
Disclosure of Invention
The invention provides a multi-core monomolecular magnet, which is a complex or a solvate thereof as follows:
Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6wherein Ac represents an acetyl group.
Further, the monomolecular magnet is [ Co ]5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·4CH3OH, wherein Ac represents acetyl.
Further, the monomolecular magnet is Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·8H2O, wherein Ac represents acetyl.
Further, the structure of the monomolecular magnet is shown in fig. 1.
The invention also provides the multi-core single-molecule magnet Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·8H2O preparation method, namely preparing multi-core monomolecular magnet Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·4CH3And placing OH in air, and stabilizing to obtain the product.
Preferably, the aforementioned Co (OAc)2·4H2O and Eu (NO)3)3·6H2The molar ratio of O is 1.5: 1.
Preferably, the time period of the aforementioned reaction is 7 days.
The invention also provides application of the multi-core single-photon magnet in preparation of an information storage material.
Further, the information storage material is a magnetic storage material.
The invention provides a monomolecular magnet with a brand-new structure, which can be used for preparing data storage materials, in particular magnetic storage materials.
Drawings
FIG. 1 is [ Co ]5Eu4(OMe)8(OAc)12(NO3)2(MeOH)6]Results of X-ray single-crystal structural analysis of 4MeOH
FIG. 2 to FIG. 5 show [ Co ]5Eu4(OMe)8(OAc)12(NO3)2(MeOH)6]·8H2And detecting the performance of the monomolecular magnet of O.
FIG. 2 shows that the susceptibility of the complex measured at 2-300K changes to 21.96cm at room temperature3K mol-1With decreasing temperature, χMThe value of T decreases slowly and starts to decrease rapidly after 150K and reaches a minimum value (16.14 cm) around 25K3K mol-1) And then rises rapidly.
Fig. 3 shows MH on the left and zero field splitting on the right.
Fig. 4 and 5 illustrate the properties of a single molecule magnet.
Detailed Description
EXAMPLE 1 preparation method
1.5mmol of Co (OAc)2·4H2O (0.374g) and 1.0mmol Eu (NO)3)3·6H2O (0.446g) was dissolved in 24mL of methanol and stirred at room temperature for 10 minutes. The resulting mauve solution was then heated at 90 ℃ for 7 days to give orange hexagonal plate crystals.
The molecular formula is as follows: [ Co ] A5Eu4(OMe)8(OAc)12(NO3)2(MeOH)6]·4MeOH
FIG. 1 shows the results of the analysis of the structure of an X-ray single crystal.
The X-ray single crystal structure analysis shows that the complex is monoclinic. From the molecular structure diagram, it can be seen that the complex contains two [ Co ]2Eu2O4]The rare heterometalated cubane structure is formed by a nine-core heterometal complex formed by bridging Co (II) cations through carboxylate radicals. In the molecular structure, each Co (II) ion exhibits a hexa-coordinated octahedral configuration, while all Eu (III) ions exhibit an octa-coordinated configuration, and all coordination sites are occupied by oxygen atoms. In [ Co ]2Eu2O4]In the structural elements of the cubane, four vertexes are respectively occupied by two Co (II) ions and Eu (III) ions, and the other four vertexes are occupied by mu3O atoms, Co (II) and Eu (III) ions are connected with each other by four carboxylate radicals, two of which are coordination modes of cis-cis, and the other two of which are not bridged [ Co (II) ((III))2Eu2O4]Co and Eu in the structural elements are also coordinated and connected with Co5 atoms connecting two hetero metal cubane elements, and the expression is eta1:η2-μ3Coordination mode (2). The Co5 atom passes through two eta1:η2-μ3The acetate in coordination mode and the acetate in cis-cis coordination mode are connected with Co2 and Co4 atoms in the two-end hetero metal cubane, and six O atoms coordinated with Co5 are respectively from four eta1:η2-μ3Mu in acetate in coordination mode2-O atom and two cis-cis coordination modes of acetate.
[Co5Eu4(OMe)8(OAc)12(NO3)2(MeOH)6]4MeOH stable in air (after 1 h) to [ Co5Eu4(OMe)8(OAc)12(NO3)2(MeOH)6]·8H2O。
Elemental analysis: ,
Calc.:C：19.67％，H 4.34％，N 1.21％；Found:C 19.78％，H 4.07％，N 1.27％。
infrared analysis:
IR(KBr pellet,cm-1):3415(m),2432(m),1555(s),1421(m),1384(m),1027(m),673(s),616(s).
the performance of the single-molecule magnet is detected by a magnetic measurement system.
FIG. 2 shows that the susceptibility of the complex measured at 2-300K changes to 21.96cm at room temperature3K mol–1With decreasing temperature, χMThe value of T decreases slowly and starts to decrease rapidly after 150K and reaches a minimum value (16.14 cm) around 25K3K mol-1) And then rises rapidly.
Fig. 3 shows MH on the left and zero field splitting on the right.
Fig. 4 and 5 illustrate the properties of a single molecule magnet.
Claims (10)
1. A multi-core single molecule magnet, characterized in that: the monomolecular magnet is a complex or a solvate thereof as follows:
Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6wherein Ac represents an acetyl group.
2. The multinuclear single molecule magnet according to claim 1, wherein: the monomolecular magnet is
[Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·4CH3OH, wherein Ac represents acetyl.
3. The multinuclear single molecule magnet according to claim 1, wherein: the monomolecular magnet is
Co5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·8H2O, wherein Ac represents acetyl.
4. The multinuclear single molecule magnet according to claim 1, wherein: the structure of the single-molecule magnet is shown in figure 1.
5. A method for producing the multinuclear single-molecule magnet according to claim 2, characterized in that: mixing of Co (OAc)2·4H2O and Eu (NO)3)3·6H2Dissolving O in methanol, and reacting the obtained mauve solution at 75-95 ℃ for 1-10 days to obtain orange hexagonal flaky crystals; wherein Ac represents acetyl, Co (OAc)2·4H2O and Eu (NO)3)3·6H2The molar ratio of O is 2-1: 1.
6. The method for producing a multinuclear single-molecule magnet according to claim 5, characterized in that: the molar ratio of the Co (OAc) 2.4H 2O to Eu (NO3) 3.6H 2O is 1.5: 1.
7. The method for producing a multinuclear single-molecule magnet according to claim 5 or 6, characterized in that: the reaction time was 7 days.
8. A method for preparing the multi-nuclear single-molecule magnet as claimed in any one of claims 5 to 7, which is characterized in that the multi-nuclear single-molecule magnet Co as claimed in claim 3 is used5Eu4(OCH3)8(OAc)12(NO3)2(CH3OH)6]·4CH3And placing OH in air, and stabilizing to obtain the product.
9. Use of the multinuclear single-seed magnet according to any one of claims 1 to 4 for the production of an information storage material.
10. The use of claim 9, wherein: the information storage material is a magnetic storage material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375748 | 2018-11-19 | ||
| CN2018113757484 | 2018-11-19 |
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| Publication Number | Publication Date |
|---|---|
| CN110729090A true CN110729090A (en) | 2020-01-24 |
| CN110729090B CN110729090B (en) | 2023-08-29 |
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| CN201911123441.XA Active CN110729090B (en) | 2018-11-19 | 2019-11-16 | Polynuclear single-molecule magnet |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005012147A (en) * | 2003-06-23 | 2005-01-13 | Nissan Chem Ind Ltd | Monomolecular magnet and its manufacturing method |
| CN103310938A (en) * | 2013-06-27 | 2013-09-18 | 黑龙江大学 | Co-Dy type single molecule magnetic material and preparation method thereof |
| CN103450235A (en) * | 2013-09-17 | 2013-12-18 | 东华理工大学 | Method for synthesizing multinuclear 3d-4f metal-organic complexes through one-pot reaction |
| CN105037405A (en) * | 2015-06-26 | 2015-11-11 | 黑龙江大学 | Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet |
| CN106715690A (en) * | 2014-07-03 | 2017-05-24 | 联邦科学和工业研究组织 | Host-guest metal organic framework systems |
-
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- 2019-11-16 CN CN201911123441.XA patent/CN110729090B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005012147A (en) * | 2003-06-23 | 2005-01-13 | Nissan Chem Ind Ltd | Monomolecular magnet and its manufacturing method |
| CN103310938A (en) * | 2013-06-27 | 2013-09-18 | 黑龙江大学 | Co-Dy type single molecule magnetic material and preparation method thereof |
| CN103450235A (en) * | 2013-09-17 | 2013-12-18 | 东华理工大学 | Method for synthesizing multinuclear 3d-4f metal-organic complexes through one-pot reaction |
| CN106715690A (en) * | 2014-07-03 | 2017-05-24 | 联邦科学和工业研究组织 | Host-guest metal organic framework systems |
| CN105037405A (en) * | 2015-06-26 | 2015-11-11 | 黑龙江大学 | Single molecular magnet Dy2 (salen) 2 (tta) 4 (OAc) 2 and preparation method of single molecular magnet |
Non-Patent Citations (2)
| Title |
|---|
| ENRIQUE COLACIO: "Family of Carboxylate- and Nitrate-diphenoxo Triply Bridged Dinuclear NiIILnIII Complexes (Ln = Eu, Gd, Tb, Ho, Er, Y): Synthesis, Experimental and Theoretical Magneto-Structural Studies, and Single-Molecule Magnet Behavior", 《INORG. CHEM.》, vol. 51, pages 5857 * |
| 霍良琴: "三脚架含磷芳香多酸构筑的配合物及性能研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
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| CN110729090B (en) | 2023-08-29 |
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