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Organic benzothiazole crystal material and preparation method thereof

A technology of benzothiazoles and crystal materials, which is applied in the direction of polycrystalline material growth, crystal growth, chemical instruments and methods, etc., can solve the problems that cannot be practically applied, difficult to grow large-size, high-quality single crystals, etc., and achieve high Practical value, simple preparation method, and easy-to-obtain raw materials

Inactive Publication Date: 2020-10-20
QINGDAO UNIV
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  • Application Information

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Problems solved by technology

Among the crystals of the quinoline system: such as OHQ-T crystals currently need to be grown in a mixed solvent of methanol and acetonitrile; and OHQ-VBS currently does not have larger crystals; OHQ-I can only grow fine needle-shaped crystals and cannot Practical application; OHQ-TFO crystals with better performance can only grow thinner single crystals through the "finite geometry" method
As far as quinoline system crystals are concerned, it is difficult to grow large-sized, high-quality single crystals, which is an urgent problem to be solved at present.

Method used

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  • Organic benzothiazole crystal material and preparation method thereof
  • Organic benzothiazole crystal material and preparation method thereof
  • Organic benzothiazole crystal material and preparation method thereof

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Embodiment

[0026] (1) Dissolve 10.55g (0.5mol) of 4-chlorobenzenesulfonyl chloride in 50ml of methanol (99.5%) solution, stir and dissolve;

[0027] (2) Dissolve 2.7g (0.5mol) of sodium methoxide in 80ml of methanol (99.5%) solution, stir and dissolve;

[0028] (3) Place the solution obtained in step (1) and step (2) in a three-necked flask with a condensation reflux device, add a magnet to stir, heat in an oil bath at 45°C, and react for 36 hours;

[0029] (4) Add 6.35ml (0.5mol) of 2-methylbenzothiazole and 25ml of methanol to the solution obtained in step (3), and react at 60°C for 24h;

[0030] (5) Dissolve 7.45g (0.5mol) p-dimethylaminobenzaldehyde in 55ml of methanol solution, then place the obtained solution in the solution obtained in step (4), add a catalyst at the same time, and react at 70°C After 3 days, a dark red solution was obtained;

[0031] (6) The solution obtained in step (5) is recrystallized 3 times to obtain the yellow crystal growth raw material DAB, such as fi...

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Abstract

The invention belongs to the technical field of functional crystal material synthesis, and relates to an organic benzothiazole crystal material and a preparation method thereof, wherein the organic benzothiazole crystal material is 2-(4-dimethylamino)styryl-benzothiazole, and the chemical formula is C17H16NS. According to the invention, the organic benzothiazole crystal material has the characteristics of easily available raw materials and simple preparation method, a molecule with a benzothiazole ring exists in the prepared crystal structure, and the benzothiazole ring has an excellent pi electron conjugated system, so that a large pi electron conjugated system is formed in the whole crystal molecular structure, the non-central symmetry is remarkably improved, a large nonlinear optical coefficient is generated, the second-order nonlinear optical property is 29 times that of KDP, the nonlinear property is good, the fluorescence emission property is achieved, and the potential practicalvalue is high.

Description

Technical field: [0001] The invention belongs to the technical field of synthesis of functional crystal materials, and relates to an organic nonlinear optical crystal material and a preparation method thereof, in particular to an organic benzothiazole crystal material and a preparation method thereof. Background technique: [0002] Organic nonlinear crystals have large second-order nonlinear optical coefficients, high electro-optic coefficients, and low dielectric constants. They have high conversion efficiency, wide bandwidth, and simple phase matching conditions. , photoelectric conversion, electro-optic sampling, millimeter wave monitoring, frequency doubling and optical parameter generation, etc. have broad application prospects. When the organic crystal is used as a terahertz emission source, the spectral width can cover the entire terahertz band (0.1-10THz), and the terahertz pulse is short, the time-of-flight resolution is high, and the cost is low; in addition, the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/54C30B7/08G02F1/361
CPCC30B7/08C30B29/54G02F1/3551G02F1/3612G02F1/3614
Inventor 曹丽凤滕冰钟德高纪少华徐凯王田华
Owner QINGDAO UNIV
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