Lead ion-containing thiophene derivative functional complex crystal material and its preparation method and application

A technology of thiophene derivatives and crystalline materials, applied in lead organic compounds, 4/14 groups of organic compounds without C-metal bonds, material resistance, etc., can solve the problems of poor stability, complex synthesis and moisture-sensitive properties Less problems, to achieve the effect of good crystallinity, high purity, excellent moisture sensitivity

Inactive Publication Date: 2020-12-15
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of few types of complex materials with moisture-sensitive performance, complex synthesis and poor stability, the object of the present invention is to provide a preparation method of a thiophene derivative functional complex crystal material containing lead ions

Method used

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  • Lead ion-containing thiophene derivative functional complex crystal material and its preparation method and application
  • Lead ion-containing thiophene derivative functional complex crystal material and its preparation method and application
  • Lead ion-containing thiophene derivative functional complex crystal material and its preparation method and application

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preparation example Construction

[0043] The preparation method of following moisture sensitive sensor is as follows:

[0044] According to the mass ratio of thiophene derivative functional complex crystal material and water is 4:1, take [Pb(TMA)] n The crystal (the crystal material of the functional complex of thiophene derivatives) and distilled water are fully mixed in a small agate mortar and ground into a paste slurry. Then, an appropriate amount of slurry is uniformly coated on the surface of the interdigital electrode to form a sensitive layer, and the thickness of the sensitive layer is 50-100 μm. The base of the interdigitated electrodes is an alumina ceramic sheet (length×width×thickness: 8mm×4mm×0.5mm), and there are 5 pairs of Ag-Pd electrodes sprayed on the surface, and the width and finger spacing of each electrode are both 0.15mm. Afterwards, the coated interdigitated electrodes were dried in an oven at 80 °C for 5 h to increase the mechanical strength of the sensitive layer. Two Ag pins were ...

Embodiment 1

[0051] A preparation method of a thiophene derivative functional complex crystal material containing lead ions, comprising the following steps:

[0052] Step 1, in a beaker, X mol of lead nitrate and distilled water are uniformly mixed to obtain solution A, wherein, in parts by mass, the ratio of lead nitrate and water is 1:50;

[0053] Step 2, adding X mol of 3-thiophene malonate to solution A obtained in step 1 (making the amount of 3-thiophene malonate equal to that of lead nitrate), stirring vigorously for 1 h, and filtering to obtain a clear solution;

[0054] Step 3, use acetone as the diffusion agent, and cultivate the thiophene derivative functional complex crystal material according to the solvent diffusion method (New J.Chem., 2016, 40, 1953–1956): place them in a dry container from top to bottom The first open container and the second open container, place the clarified solution gained in step 2 in the first open container, place acetone in the second open container...

Embodiment 2

[0074] A preparation method of a thiophene derivative functional complex crystal material containing lead ions, comprising the following steps:

[0075] Step 1, in a beaker, X mol of lead nitrate and distilled water are uniformly mixed to obtain solution A, wherein, in parts by mass, the ratio of lead nitrate and water is 1:75;

[0076] Step 2, adding X mol of 3-thiophene malonate to solution A obtained in step 1 (making the amount of 3-thiophene malonate equal to that of lead nitrate), stirring vigorously for 1 h, and filtering to obtain a clear solution;

[0077]Step 3, use acetone as the diffusion agent, and cultivate the thiophene derivative functional complex crystal material according to the solvent diffusion method (New J.Chem., 2016, 40, 1953–1956): place them in a dry container from top to bottom The first open container and the second open container, place the clarified solution obtained in step 2 in the first open container, place acetone in the second open containe...

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Abstract

The invention discloses a thiophene derivative functional complex crystal material containing lead ions and a preparation method and application thereof. The specific composition of the thiophene derivative functional complex crystal material is [Pb(TMA)]<n>, and the Pb(II) ion in the molecular structure of the thiophene derivative functional complex crystal material is a deformed octahedral coordination environment. The preparation method for the thiophene derivative functional complex crystal material is as follows: lead nitrate and 3-thiophenemalonic acid are mixed in hydrosolvent, and by utilizing a solvent diffusion method, a large number of colorless sheet crystals are obtained. Under different relative humidities, the impedance of the thiophene derivative functional complex crystalmaterial has rapid and sensitive response, which indicates that the thiophene derivative functional complex crystal material can serve as a humidity-sensitive material with excellent performance. Thepreparation method disclosed by the invention is easy to operate and industrially scale up, the cost of the preparation process is low, the purity and stability of the product are high, and the thiophene derivative functional complex crystal material has a broad application prospect in the field of electrochemical sensing (such as humidity-sensitive sensors).

Description

technical field [0001] The invention belongs to the technical field of complex materials containing Pb(II) ions, and in particular relates to a thiophene derivative functional complex crystal material containing lead ions and a preparation method and application thereof. Background technique [0002] Complexes have always been one of the hot research fields of inorganic chemistry because of their rich structures and excellent properties. Especially since 2000, the development of complex materials with properties such as storage, catalysis, and magnetism has been extremely rapid (Nature, 2004, 427, 523-527; Nat. Chem. 2010, 353–361; Chem. Soc. Rev. 2016, 45 , 2423–2439). In recent years, researchers have found that complexes have unique advantages over traditional semiconductor oxides as sensing materials, such as adjustable structure, easy conversion of active sites (such as metal centers), and intramolecular pore structure (shape, size). Adjustable et al. (Chem. Rev. 2016...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/24G01N27/04
CPCC07B2200/13C07F7/003C07F7/24G01N27/04
Inventor 张乐喜殷艳艳李明伟邢月孙荣欢别利剑李亚宁李挺
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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