A kind of oligothiophene organic small molecule and its preparation method and application

An oligothiophene and small molecule technology, which is applied in the field of biomedicine and organic photoelectric materials, can solve the problems of energy conversion efficiency less than 2% and limited number of organic compounds, and achieve excellent thermal stability, improved solubility, and good absorption Effect

Inactive Publication Date: 2019-06-07
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2010, Tyler's research group reported Pechmann organic small molecule photovoltaic materials, whose energy conversion efficiency is less than 2%.
However, the number of organic compounds that can be used as photovoltaic materials for organic small molecule solar cells in the prior art is limited, and it is difficult to meet the existing needs

Method used

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  • A kind of oligothiophene organic small molecule and its preparation method and application
  • A kind of oligothiophene organic small molecule and its preparation method and application
  • A kind of oligothiophene organic small molecule and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0055] Concrete reaction route is as follows:

[0056]

[0057] Proceed as follows:

[0058] 5-(5-Bromothien-2-yl)-1,3,4-oxadiazole-2(3H)-thione (4)

[0059] Add 5-bromothiophene-2-carboxhydrazide (0.8843g, 4.0mmol), potassium hydroxide (0.3366g, 6.0mmol), absolute ethanol 35mL, CS 2 (0.5484mL, 8.0mmol), reflux with magnetic stirring, add 0.5mL of carbon disulfide every 2.0h, add 2 times, stop after 8.0h of reaction. After the reaction was completed, spin dry under reduced pressure to remove the solvent, add 30mL of water, shake vigorously, filter to obtain the filtrate, adjust the pH to about 2-3, precipitate a large amount of light yellow solid, filter to obtain light yellow solid 4 (0.843g, yield 80.1 %).

[0060] 1 H NMR results are as follows: δ7.63 (d, J=4.0Hz, 1H), 7.44 (d, J=4.0Hz, 1H).

[0061] 5-(5-Bromothien-2-yl)-3-hexyl-1,3,4-oxadiazole-2(3H)-thione (6)

[0062] Add 4 (1.0525g, 4.0mmol), KOH (0.2244g, 4.0mmol), MeOH (25mL), THF (25mL) into the round botto...

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Abstract

The invention discloses an oligothiophene organic small molecule and its preparation method and application; the organic small molecule is an oxadiazole-containing oligothiophene organic small molecule compound, which has good thermal stability and good Solubility, and has a broad absorption spectrum in the ultraviolet-visible region, it is applied as a photovoltaic material to organic small molecule solar cells, showing a good photoelectric conversion function, and it also has a good antibacterial effect, can be used as Antibacterial drugs such as Gram-positive bacteria and Gram-negative bacteria are used.

Description

technical field [0001] The present invention relates to an organic small molecule photovoltaic material and its preparation method and application, in particular to an oligothiophene organic small molecule and its preparation method and application in organic small molecule solar cells or application in antibacterial drugs , belonging to the field of organic optoelectronic materials and the field of biomedicine. Background technique [0002] In today's world, with the rapid progress of human civilization and the rapid development of society and economy, human demand for energy is increasing. However, people's excessive use of fossil fuels as conventional energy has led to an energy crisis, which has led people to search for and develop new energy sources. As a clean and environmentally friendly renewable energy source, solar energy has received more and more attention, and solar cells that convert solar energy into electrical energy have become a research hotspot for scient...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D413/14H01L51/46H01L51/42A61P31/04
CPCC07D413/14H10K85/655H10K85/6565H10K30/00Y02E10/549
Inventor 彭红建栾向峰胡薏冰冯柳柳蒋历辉邹应萍
Owner CENT SOUTH UNIV
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