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Near-infrared light absorption polysulfide metal complexes and their preparation methods and applications

A technology of metal complexes and near-infrared light, which is applied in the field of near-infrared light-absorbing materials, can solve the problems of no absorption or weak absorption in the visible spectral region, difficult adjustment of the spectrum, cumbersome preparation, etc., and achieve easy mass production and good Effects of photochemical stability and simple preparation method

Inactive Publication Date: 2016-12-07
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of high toxicity, cumbersome preparation, poor stability, difficult spectrum adjustment, and no or weak absorption in the visible spectrum region and strong absorption in the near-infrared spectrum region in the prior art. Provide a near-infrared light intensity absorbing polysulfide metal complex and its preparation method and application

Method used

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  • Near-infrared light absorption polysulfide metal complexes and their preparation methods and applications
  • Near-infrared light absorption polysulfide metal complexes and their preparation methods and applications
  • Near-infrared light absorption polysulfide metal complexes and their preparation methods and applications

Examples

Experimental program
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Effect test

Embodiment 1

[0137] Compound III, when R' and R'' are both -C 8 h 17 , to prepare 4,8-dioctyl-1,3,5,7-tetrathiobenzobisindene-2,6-dione, denoted as compound III-1:

[0138] First add 4.61g (192mmol) of sodium metal strips and 12.34g (96mmol) of naphthalene to 200ml of anhydrous tetrahydrofuran, then add 9.52g (16mmol) of 3,6-dioctyl-1,2,4, 5-Tetraisopropylthiobenzene, protected by argon, stirred at 60°C for 16 hours. After the system was cooled to room temperature, 15ml of triethylamine was injected into the system in an ice-salt bath, and then 120ml containing 9.50g ( Add the toluene solution of 32mmol) triphosgene dropwise into the system, and the addition takes 2h. After the addition is completed, continue to stir for 1h, then naturally rise to room temperature, and slowly add 50ml of deionized water dropwise through the constant pressure dropping funnel, which takes 1h , then add 200ml of deionized water to wash the reaction solution, separate the liquid, extract the aqueous phase wi...

Embodiment 2

[0141] Compound III, when R' and R'' are both -OC 8 h 17 , to prepare 4,8-dioctyloxy-1,3,5,7-tetrathiobenzobisindene-2,6-dione, denoted as compound III-2:

[0142] First add 5.52g (240mmol) of sodium metal strips and 15.38g (120mmol) of naphthalene to 150ml of anhydrous tetrahydrofuran, then add 12.73g (20mmol) of 3,6-dioctyloxy-1,2,4 , 5-Tetraisopropylthiobenzene, protected by argon, stirred at 50°C for 24 hours, after the system was cooled to room temperature, 20ml of triethylamine was injected into the system in an ice-salt bath, and then 120ml containing 11.87g (40mmol) the toluene solution of triphosgene was added dropwise in the system, and it took 2.5h to add. After the addition was completed, continue to stir for 1h, then naturally rose to room temperature, and slowly added 50ml of deionized water through the constant pressure dropping funnel, After 1 hour, add 250ml of deionized water to wash the reaction solution, separate the liquids, extract the aqueous phase wit...

Embodiment 3

[0148] Compound III, when R' and R" are both -OC 6 h 13 , to prepare 4,8-dihexyloxy-1,3,5,7-tetrathiobenzobisindene-2,6-dione, denoted as compound III-3:

[0149] First add 2.3g (96mmol) of sodium metal strips and 6.17g (48mmol) of naphthalene to 120ml of anhydrous tetrahydrofuran, then add 4.59g (8mmol) of 3,6-dihexyloxy-1,2,4 , 5-Tetraisopropylthiobenzene, protected by argon, stirred at 45°C for 22 hours, after the system was cooled to room temperature, 7.5ml of triethylamine was injected into the system in an ice-salt bath, and then 70ml containing 4.75 The toluene solution of g (16mmol) triphosgene was added dropwise to the system, and the addition took 1.5h. After the addition was completed, continue to stir for 1h, then naturally rose to room temperature, and slowly added 50ml of deionized water through the constant pressure dropping funnel. , after 1 hour, add 120ml of deionized water to wash the reaction solution, separate the liquid, extract the water phase with dic...

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Abstract

The invention discloses a strong near-infrared absorption polysulfide metal complex as well as a preparation method and application thereof, belongs to the technical field of near-infrared absorption materials, and solves the technical problems that a near-infrared absorption material is high in toxicity, complex to prepare, poor in stability and hard in spectrum adjustment, and very difficultly realizes that a visible spectrum region is not absorbed or weakly absorbed and a near-infrared spectrum region is strongly absorbed. The polysulfide metal complex has a structure as shown in a formula I; in the formula I, R1, R2, R3 and R4 are the same or different and are alkyl groups or alkoxy groups respectively, M is transition metal, n is 0 or 1, and L1 and L2 are the same or different and are phosphorus-containing auxiliary ligands respectively. The polysulfide metal complex is better in optical chemical stability, thermal stability and solubility; the near-infrared absorption wavelength is adjustable, the near-infrared region is more strongly absorbed, the visible region is very weakly absorbed, and the near-infrared absorption wavelength and the light absorption coefficient of the complex can be subjected to in-situ adjustment through chemical oxidation and electrochemical treatment.

Description

technical field [0001] The invention relates to a near-infrared light-intensity-absorbing polysulfide metal complex and a preparation method and application thereof, belonging to the technical field of near-infrared light-absorbing materials. Background technique [0002] Near-infrared light (or simply near-infrared) refers to light that lies between 780-2500 nanometers (nm) in the electromagnetic spectrum. The utilization and modulation of light in this band involves applications in many important fields, such as solar cells, optical communications (850nm, 1310nm and 1550nm), medical and biological fields (900-1300nm), data storage, infrared detection and night vision camouflage, etc.; The application of near-infrared light in these fields mainly depends on near-infrared light absorbing materials. [0003] The near-infrared light absorbing material refers to a material capable of absorbing near-infrared light. In the prior art, common materials with near-infrared absorpti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/04C07F19/00C07F15/00C07D495/04G02B5/22G02B1/04
Inventor 王植源刘波乔文强
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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