Synthesis method of zinc complex, and applications of zinc complex as fluorescent probe and ferroelectric material

A fluorescent probe, zinc complex technology, applied in luminescent materials, zinc organic compounds, material analysis by optical means, etc., to achieve the effect of high yield, easy separation and high yield

Inactive Publication Date: 2020-03-17
YANCHENG TEACHERS UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In summary, a large number of complexes with fluorescent and ferroelectric properties have been reported separately, but can also have 3+ 、Cr 2 o 7 2- , NZF, and NFT all respond and have excellent ferroelectric properties reported are very few

Method used

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  • Synthesis method of zinc complex, and applications of zinc complex as fluorescent probe and ferroelectric material
  • Synthesis method of zinc complex, and applications of zinc complex as fluorescent probe and ferroelectric material
  • Synthesis method of zinc complex, and applications of zinc complex as fluorescent probe and ferroelectric material

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Experimental program
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Embodiment 1

[0033] The synthesis of embodiment 1 complex:

[0034] 14.8 mg of zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O), 18.7mg of 1,1'-(4-carboxyphenyl)-2,2'-biimidazole (H 2 L), 7.81 mg of 4,4'-bipyridine (4,4'-Bipyridine) were dissolved in 10 mL of water, and then added at a concentration of 0.15 mol L -1 hydrochloric acid solution to adjust the pH to 1.2, stirred for half an hour, transferred to the polytetrafluoroethylene liner of a 25mL hydrothermal reactor, and reacted for 72 hours at a temperature of 100°C. The resulting product was washed three times with ethanol (2mL / time), A colorless transparent bulk crystal was obtained. The calculated yield based on Zn metal was 45.3%.

Embodiment 2

[0035] The structural characterization of embodiment 2 complex:

[0036] The crystal structure adopts Bruker Smart CCD X-ray single crystal diffractometer, and at 296(2) K, selects the crystal with the size of 0.31×0.14×0.13mm, and uses the MoKα ray (λ=0.07107nm) after graphite monochromatization as The incident radiation source is used to collect diffraction points by ω / 2θ scanning, the unit cell parameters are refined by the least square method, and the collected data is corrected for absorption with the SADABS program. The structure of the complex was solved by the direct method, the coordinates of non-hydrogen atoms and the anisotropy temperature factor were refined by the full-matrix least-squares method, and all calculations were completed by the SHELXTL program. The detailed crystallographic parameters are listed in Table 1. [Zn(L)·H 2 O] n The crystal structure diagram and three-dimensional structure diagram are shown in Fig. 1(a) and Fig. 1(b).

[0037] Crystallog...

Embodiment 3

[0040] The fluorescent property of embodiment 3 complexes:

[0041] LS-55 fluorescence spectrometer was used to test the fluorescence properties of the complexes at room temperature. figure 2 It is the solid-state fluorescence image of the zinc complex prepared in Example 1, indicating that the material has strong fluorescence properties. Such as image 3 As shown, the complex exhibits strong luminescent properties in aqueous solution.

[0042] It can be seen from Fig. 4(a) that in the selected metal ion aqueous solution, the fluorescence intensity of the zinc complex prepared in Example 1 shows a dependence on the metal ion, and on Fe 3+ exhibits a complete fluorescence quenching effect and is expected to become a Fe 3+ fluorescent probes.

[0043] It can be seen from Figure 5(a) that in the selected anion aqueous solution, the fluorescence intensity of the zinc complex prepared in Example 1 shows a dependence on the type of anion, only Cr 2 o 7 2- exhibits a complete ...

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Abstract

The invention provides a preparation method of a zinc metal complex, and applications of the zinc metal complex as a fluorescent probe and a ferroelectric material. The chemical formula of the complexis [Zn(L).H2O] n, wherein H2L is 1,1'-(4-carboxyl phenyl)-2,2'-biimidazole. The zinc metal complex is of a three-dimensional structure formed by self-assembling zinc ions with an L<2-> ligand. The zinc complex shows an obvious fluorescence quenching effect on ferric ions, dichromate ions, antibiotics furacilin and nitrofurantoin, can be used as the fluorescent probe, and has potential applicationvalues in the fields of environmental monitoring and life science. In addition, the zinc complex has excellent ferroelectric properties: when an external electric field is 1200 V, the remnant polarization is 1.84 [mu]C / cm<2>, the coercive field is 714 V / cm, and the saturation polarization is 2.15 [mu]C / cm<2>, so that the zinc complex is expected to become the novel ferroelectric material, and hasa wide application prospect in the field of information storage.

Description

[0001] Statement on funding research or development: This invention is carried out under the support of Jiangsu Provincial Policy Guidance Program (Industry-University-Research Cooperation)-Prospective Joint Research Project (Grant no.BY2016066-08). technical field [0002] The invention belongs to the technical field of organic synthesis and organometallic chemistry, and specifically relates to the preparation of a three-dimensional zinc coordination polymer with 1,1'-(4-carboxyphenyl)-2,2'-biimidazole as a ligand And as ferric ion (Fe 3+ ), dichromate ion (Cr 2 o 7 2- ), nitrofurazone (NZF) and nitrofurantoin (NFT) antibiotic fluorescent probes and can be used as zinc complexes of ferroelectric materials. Background technique [0003] Compared with traditional luminescent materials, complex fluorescent materials have attracted much attention due to their high chemical stability of inorganic materials and high quantum yield of organic materials. The fluorescence propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06C09K11/06G01N21/64
CPCC07F3/06C09K11/06C09K2211/188G01N21/643G01N2021/6432
Inventor 王俊陈宁宁许晓娟
Owner YANCHENG TEACHERS UNIV
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