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Terahertz non-linear optical crystal 4-[4-(dimethylamino)styryl]-methylpyridine . p-toluenesulfonate

A technology of dimethylaminostyrene and chlorobenzene sulfonate is applied in the directions of crystal growth, single crystal growth, single crystal growth, etc., to achieve mild reaction conditions, good thermal stability, and good nonlinear optical frequency doubling effect. Effect

Inactive Publication Date: 2013-11-13
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the inventor designed and synthesized a novel nonlinear optical crystal material: p-chlorobenzenesulfonic acid anion was introduced on the basis of the DAST cationic structural unit; not only to ensure that the crystal has a good nonlinear optical effect, but also to improve the physical and chemical properties of the material. Stability, overcoming the shortcoming of DAST crystals that are easy to bind water

Method used

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  • Terahertz non-linear optical crystal 4-[4-(dimethylamino)styryl]-methylpyridine . p-toluenesulfonate
  • Terahertz non-linear optical crystal 4-[4-(dimethylamino)styryl]-methylpyridine . p-toluenesulfonate
  • Terahertz non-linear optical crystal 4-[4-(dimethylamino)styryl]-methylpyridine . p-toluenesulfonate

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Experimental program
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Effect test

Embodiment 1

[0032] Preparation of reaction raw material methyl p-chlorobenzenesulfonate

[0033] At room temperature, react 0.005 mol p-chlorobenzenesulfonyl chloride and 0.005 mol sodium methoxide in 200 ml methanol for 12 h, filter the solution to remove the precipitate, and obtain methyl p-chlorobenzenesulfonate;

[0034] Mix 0.002 mol p-chlorobenzenesulfonyl chloride with methanol, stir and slowly raise the temperature to 65-70°C, and reflux for about 24 hours to obtain methyl p-chlorobenzenesulfonate;

Embodiment 2

[0036] Synthesis of 4-(4-dimethylaminostyryl)picoline iodide salt

[0037] Dissolve 0.001 mol 4-picoline, 0.001 mol iodomethane and 0.001 mol 4-dimethylaminobenzaldehyde in an appropriate amount of methanol, stir and slowly raise the temperature to 65-70°C, and use piperidine as a catalyst for reflux reaction for 10- After 12 h, the color of the solution gradually changed from light yellow to deep red. After the solution was cooled, crystallized, filtered and dried, 4-(4-dimethylaminostyryl) picoline iodide salt was obtained with a yield of 84.2 %.

Embodiment 3

[0039] Synthesis of 4-(4-dimethylaminostyryl)picoline·p-chlorobenzenesulfonate crystals

[0040] Dissolve 0.001 mol of methyl p-chlorobenzenesulfonate and 0.001 mol of 4-dimethylaminobenzaldehyde in 100 mL of methanol, stir and slowly raise the temperature to 70 ° C, and use piperidine as a catalyst for reflux reaction for 24 h. The color of the solution is as follows: The light yellow gradually turns into deep red. After the solution is cooled, crystallized, filtered and dried, red flake 4-(4-dimethylaminostyryl)picoline·p-chlorobenzenesulfonate is obtained.

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Abstract

The invention provides a non-linear optical crystal 4-[4-(dimethylamino)styryl]-methylpyridine . p-toluenesulfonate and a preparation method and applications thereof, and belongs to the field of functional materials. The molecular formula of the crystal is C22H23ClN2O3S, the crystal belongs to monoclinic crystal system, Cc space group, the lattice parameters are as follows: a equals to 10.363 (5), b equals to 11.163 (5), c equals to 17.892 (6) angstrom, beta equals to 92.15 (3) degree, Z equals to 4, and V equals to 2068.2 (15) angstrom<3>; the non-linear optical frequency-doubled effect of the crystal is 1.3 times of that of DAST, the time-domain spectral signal strength generated by the device made of the crystal is equal to that of DAST crystal in the wavelength range of 1.5 to 8.2 THz, the terahertz-wave radiation intensity is 1.05 times that of DAST crystal, and the parameters mentioned above have shown that the crystal is an excellent terahertz radiation source material.

Description

technical field [0001] The invention belongs to the field of functional materials, in particular to a nonlinear optical crystal 4-(4-dimethylaminostyryl)picoline p-chlorobenzenesulfonate, a growth preparation method thereof and a method for making terahertz Applications of Radiation Source Optics. Background technique [0002] Terahertz waves (Terahertz, THz) generally refer to electromagnetic waves with a frequency range of 0.1-10 THz, between the microwave and infrared ranges. Terahertz waves have unique advantages such as low photon energy, high penetration and strong coherence. They are used in basic research fields such as physics, chemistry, astronomy, medicine and life sciences, as well as applications such as security inspection, environmental detection, satellite communication and weapon precision guidance. The field reflects important scientific value and application prospect. In recent years, with the rapid development of semiconductor microelectronics technolog...

Claims

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Application Information

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IPC IPC(8): C30B29/54C30B7/08
Inventor 罗军华孙志华陈天亮张书泉赵三根洪茂椿
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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