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Hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal and preparation method thereof

A technology of pyrenetricarboxylic acid and diboronic acid, applied in chemical instruments and methods, other chemical processes, luminescent materials, etc., can solve the problem of less channel materials

Inactive Publication Date: 2015-04-29
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over the years, people have synthesized a large number of borates of alkali metals, alkaline earth metals, transition metals and rare earth metals, but the channel materials synthesized by metals and organic carboxylic acids or organic amines and boric acids are relatively few

Method used

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  • Hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal and preparation method thereof
  • Hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal and preparation method thereof
  • Hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 0.75g (3mmol) cobalt acetate tetrahydrate, 0.26g (1mmol) indium trioxide, 0.25g (4mmol) boric acid, 0.22g (1mmol) 1,3,5-tribenzenetricarboxylic acid, 1.0g (6mmol) Add 1-ethyl-3-methyl-imidazole into the polytetrafluoroethylene liner and mix evenly, then put the polytetrafluoroethylene liner into the reaction kettle, and react at a constant temperature of 150°C for 7 days, and then at 10°C / The cooling rate of min is cooled to normal temperature, and the purple diamond-shaped microporous crystal cobalt indium diboronic acid 3-benzenetricarboxylate is obtained, and its yield is 65%, and the molecular formula is Co 5 In (BTC) 4 [(B 2 o 4 (OH)] 2 , where BTC stands for 1,3,5-tribenzenetricarboxylate, with a molecular weight of 1443.18, belonging to the monoclinic crystal system, P2 1 / c space group, cell parameter a is b for c for β is 98.208(2)°.

[0020] like figure 1 As shown, the asymmetric molecular structure of the cobalt indium diboronic acid tricarboxyla...

Embodiment 2

[0023] 0.75g (3mmol) cobalt acetate tetrahydrate, 0.12g (0.5mmol) indium trioxide, 0.13g (2mmol) boric acid, 0.13g (0.5mmol) 1,3,5-tribenzenetricarboxylic acid, 0.35g ( 2mmol) of 1-ethyl-3-methyl-imidazole was added into the polytetrafluoroethylene liner and mixed evenly, then the polytetrafluoroethylene liner was put into the reactor, and reacted at a constant temperature of 150°C for 10 days, and then 10 The temperature was lowered to room temperature at a cooling rate of °C / min to obtain purple rhombic microporous crystals of cobalt indium diboronic acid 3-phenylenetricarboxylate with a yield of 54%. The molecular formula, crystal structure parameters, pore volume, and pore diameter were the same as in Example 1.

Embodiment 3

[0025] 0.75g (3mmol) cobalt acetate tetrahydrate, 0.50g (2mmol) indium trioxide, 0.4g (6mmol) boric acid, 0.65g (3mmol) 1,3,5-tribenzenetricarboxylic acid, 1.0g (6mmol) Add 1-ethyl-3-methyl-imidazole into the polytetrafluoroethylene liner and mix evenly, then put the polytetrafluoroethylene liner into the reaction kettle, and react at a constant temperature of 170°C for 5 days, and then at 10°C / The temperature was lowered to normal temperature at a cooling rate of 1 min to obtain a purple diamond-shaped microporous crystal cobalt indium diboronic acid 3-benzenetricarboxylate with a yield of 57%. The molecular formula, crystal structure parameters, pore volume, and pore diameter were the same as those in Example 1.

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Abstract

The invention discloses a hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal and a preparation method thereof. The crystal has a molecular formula of Co5In(BTC)4[(B2O4(OH))]2, wherein BTC refers to 1,3,5-benzene tricarboxylate; the crystal has the molecular weight of 1443.18 and belongs to monoclinic system in a P21 / c space group; the cell parameters are that a is equal to 11.9109(3)angstroms, b is equal to 14.3578(3)angstroms, and c is equal to 20.6096(3)angstroms; the angle beta is equal to 98.208(2)degrees; and the average pore size is equal to 18-19angstroms. The hypoboric acid benzene tricarboxylic acid cobalt-indium micro-porous crystal is synthesized by adopting an ionothermal reaction; the crystal is characterized in that a one-dimensional chain is formed between biborate and dissimilar metals, the chains are connected to form a two-dimensional layer by virtue of the 1,3,5-benzene tricarboxylate, and the layers are connected to form a three-dimensional open framework structure by virtue of 1,3,5-benzene tricarboxylate ligands. The crystal has good adsorbability and fluorescence property and can be applied to the fields of petrochemical engineering and fine chemical engineering.

Description

technical field [0001] The invention belongs to the technical field of crystal materials, and in particular relates to a microporous crystal material of cobalt-indium diborane tricarboxylate with adsorption and fluorescence and a preparation method thereof. Background technique [0002] Metal-organic frameworks (MOFs) are a new class of crystalline porous materials, which are mainly composed of metal ions or metal clusters and organic ligands linked by self-assembly coordination. Due to many excellent properties determined by its pore structure, such as fluorescence performance, catalytic activity, ion exchange and adsorption, etc., it has important applications in petrochemical, fine chemical and other fields. Such materials also show broad application prospects in molecular recognition, host-guest functional material assembly, and drug embedding. So far, the design, synthesis and development of porous materials with novel structures and different chemical compositions is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F19/00C09K11/06B01J20/22
Inventor 刘志宏李飒英
Owner SHAANXI NORMAL UNIV
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