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Dimensional cadmium polymer containing mixed ligand as well as preparation method and application thereof

A technology of mixing ligands and coordination polymers, which is applied in cadmium organic compounds, organic chemistry methods, chemical instruments and methods, etc., can solve the problem of high synthesis cost of fluorescent organic light-emitting materials, achieve less material defects, good application prospects, The preparation method has the effect of simple process

Inactive Publication Date: 2015-11-25
QILU UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0004] The invention solves the problem of high synthesis cost of existing fluorescent organic light-emitting materials, and provides a two-dimensional cadmium polymer containing mixed ligands and its preparation method and application

Method used

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  • Dimensional cadmium polymer containing mixed ligand as well as preparation method and application thereof
  • Dimensional cadmium polymer containing mixed ligand as well as preparation method and application thereof
  • Dimensional cadmium polymer containing mixed ligand as well as preparation method and application thereof

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Embodiment 1

[0014] Embodiment 1 (C 22 H 17 CdN 3 O 4 )

[0015] Combine 4-(1-carboxyethyl)benzoic acid (0.1 mmol) and 2-(pyridin-4yl)benzimidazole (0.1 mmol), sodium hydroxide (0.18 mmol), and CdSO 4 . 3 / 8H 2 O (0.1 mmol) was dissolved in 6 mL of distilled water and put into a polytetrafluoroethylene reaction kettle, and the reaction kettle was put into a GZX-9030MBE electric heating blower. Set the temperature range to 160 degrees and heat for 3 days. After that, the coordination polymer C of the mixed ligands was obtained by filtration at 5°C / hour to room temperature 22 H 17 CdN 3 O 4 , the yield was 84.03% (based on Cd).

[0016] Then, the above-mentioned coordination polymers of mixed ligands were structurally characterized

[0017] The coordination polymers of the mixed ligands were diffracted from the single crystal structure and completed on a PC using the SHELXTL package. The crystallographic parameters of the complexes are listed in Table 1.

[0018]

[0019] fi...

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Abstract

The invention provides a dimensional cadmium polymer containing a mixed ligand as well as a preparation method and an application thereof. The molecular formula of the dimensional cadmium polymer is [Cd(L)(4PBI)]n, wherein L is 4-(1-carboxyethyl)benzoic acid, and 4PBI is 2-(pyridine-4-yl)benzimidazole. The transition complex is prepared by mixing and dissolving L and 4PBI as well as a metal salt in water according to a certain molar ratio, adding a certain amount of sodium hydroxide, sealing in a poly(tetrafluoroethylene) tube, placing the poly(tetrafluoroethylene) tube in a stainless steel reaction kettle, and placing the reaction kettle in a GZX-9030MBE electric heating blower; crystallizing at 50-200 DEG C for 0.1-7 days, and naturally cooling to room temperature to separate out granular crystals. The preparation method of the coordination polymer is simple in process and free of pollution; and the synthesized material is few in defects and high in degree of crystallinity. The polymer containing the mixed ligand has very good potential application prospect in the field of molecular luminescence.

Description

technical field [0001] The invention belongs to the field of metal-organic coordination polymer materials, and relates to a two-dimensional cadmium polymer containing mixed ligands and a preparation method and application thereof. Background technique [0002] In recent years, metal coordination polymers with fluorescent properties have been one of the research hotspots. Coordination polymers are metal-organic framework crystal materials containing periodic network structures formed by self-assembly of metal ions and organic ligands. They combine the characteristics of both metal ions and organic ligands and have good luminescent properties. The fluorescence properties of metal coordination polymers, including the emission intensity and emission wavelength of fluorescence, are not only related to the central metal ion, but also to a large extent related to the molecular structure of the organic ligand. Different organic ligands and the same metal ion Coordination may emit f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/08C09K11/06
CPCC07F3/003C07B2200/13C09K11/06C09K2211/188
Inventor 汪永涛王翠翠王金华汤桂梅万文珠
Owner QILU UNIV OF TECH
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