9, 10-dihydroanthracene chromophore compound and its preparing process

Abstract

The present invention relates to relates to 9, 10-dihydro anthracene chromophore compound and its preparation. The preparation process includes the following steps: introducing two formyls with 1, 1-dichloromethyl ether as formylation reagent to the methoxyl para position of the material 1, 8-dimethoxyl-9, 10-dihydro anthracene under the catalysis of Lewis acid and titanium tetrachloride to obtain 4, 5-dimethoxyl-1, 8-diformyl-9, 10-dihydro anthracene; and the reflux reaction between 4, 5-dimethoxyl-1, 8-diformyl-9, 10-dihydro anthracene and isophorone -malononitrile condensate or isophorone -barbituric acid condensate in absolute alcohol as solvent in the catalysis of hexahydropyridine and acetic acid to obtain the organic compound. The compound of the present invention has high second-order non-linear coefficient and excellent transmittancy and may be used as second-order non-linear optical material, especially laser frequency doubling material.

Description

1. Technical field

[0001] The invention relates to a chromophore compound and a preparation method thereof, in particular to a 9,10-dihydroanthracene chromophore compound and a preparation method thereof. 2. Background technology

[0002] Ordinary light interacts with matter, and the induced electric susceptibility of its molecules is proportional to the electric field intensity of light. When sufficiently strong light, such as laser light, interacts with matter, the induced electric susceptibility of its molecules is no longer proportional to the electric field strength of the light, but has become a nonlinear function relationship:

[0003] p=αE+βE 2 +γE 3 +…

[0004] Similarly, the electric polarization of a macroscopic material can be expressed as follows:

[0005] P=X (1) E+X (2) E. 2 +X (3) E. 3 +…

[0006] P and p are the electrical polarization of macroscopic materials and microscopic molecules, X (1) and α are linear polarization coefficients, X (2) and ...

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