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Photoresponse ion liquid and preparation thereof

An ionic liquid, light-responsive technology, applied in organic chemistry and other directions, to achieve the effect of good thermal stability and unique performance

Active Publication Date: 2009-07-01
浙江蓝德能源科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, photoresponsive ionic liquids containing azophenyl groups have not been reported in literature and patents

Method used

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  • Photoresponse ion liquid and preparation thereof
  • Photoresponse ion liquid and preparation thereof
  • Photoresponse ion liquid and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]

[0025] Weigh 3.51 g of 4-methyl-4'-(2-bromoethoxy) azobenzene and 0.82 g of methylimidazole, add 20 ml of anhydrous ether to it, stir until it is fully dissolved, and then add 30 ml Acetonitrile was stirred under reflux for 24 hours in the dark, and the organic solvent was distilled off under reduced pressure. The obtained solid was washed with ether, removed from the ether, and vacuum-dried at 60°C for 24 hours to obtain 3.2 g of a yellow solid with a yield of 79.8%.

Embodiment 2

[0027]

[0028] Weigh 4.67 grams of 4-n-butyl-4'-(4-bromobutoxy) azobenzene and 0.82 grams of methylimidazole, add 20 milliliters of anhydrous ether to it, stir until it is fully dissolved, then add 30 One milliliter of acetonitrile was stirred under reflux for 24 hours in the dark, and the organic solvent was distilled off under reduced pressure. The obtained solid was washed with ether, removed from the ether, and vacuum-dried at 60°C for 24 hours to obtain 6.20 g of a yellow solid with a yield of 76.0%.

Embodiment 3

[0030]

[0031] Weigh 4.67 g of 4-nitro-4-(6'-bromohexyloxy) azobenzene and 0.96 g of ethyl imidazole, add 20 ml of anhydrous ether to it, stir until it is fully dissolved, then add 30 ml Acetonitrile was stirred under reflux for 24 hours in the dark, and the organic solvent was distilled off under reduced pressure. The obtained solid was washed with ether, removed from the ether, and vacuum-dried at 60°C for 24 hours to obtain 4.21 g of a yellow solid with a yield of 82.0%.

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Abstract

The invention discloses a photoresponse ionic liquid and a preparation method thereof. The structural formula of the ionic liquid is as follows. The ionic liquid contains photoresponse azobenzene groups, can maintain good photochromic (isomerous) performance under the condition of solution and pure liquid, can realize physiochemical properties of the ionic liquid such as ultraviolet visual absorption spectrum, fluorescence emission spectrum and reversible change of conductivity under the action of light, and can be taken as a superior information storage material, an optical switch molecular device material, an electrically conductive photochromic (isomerous) material and a photosensitive material.

Description

technical field [0001] The invention relates to a photoresponsive ionic liquid and a preparation method thereof. Background technique [0002] Room temperature ionic liquids refer to organic salts composed of organic cations and organic or inorganic anions that are liquid at or near room temperature. Compared with solid ionic compounds, it is liquid; compared with traditional liquid organic matter, it is ionic. Therefore, compared with other solid or liquid materials, ionic liquids often have unique physical and chemical properties, which are mainly reflected in: extremely low vapor pressure, which should be an important basis for ionic liquids to be considered green; low melting point (-100 °C), wide liquid range (up to 200 °C or more), strong electrostatic field, which should be an important feature different from molecular media and materials; wide electrochemical window (5-7V), which means that in such a wide The ionic liquid will not be electrochemically degraded with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/60
Inventor 邓友全张世国张庆华
Owner 浙江蓝德能源科技发展有限公司
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