Synthesis and nonlinear optical properties of a series of azo chromophore functionalized alkoxysilanes

被引：35

作者：

Cui, Yuanjing ^{[1
]}

Qian, Guodong ^{[1
]}

Chen, Lujian ^{[1
]}

Wang, Zhiyu ^{[1
]}

Wang, Minquan ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

DYES AND PIGMENTS | 2008年 / 77卷 / 01期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

alkoxysilane dye; thiazole; nonlinear optical; solvatochromic method; azo chromophore;

D O I：

10.1016/j.dyepig.2007.05.005

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of azo chromophores based on benzene and thiazole moieties as conjugating bridges were synthesized and then reacted with 3-isocyanatopropyltriethoxysilane (ICTES) to give various alkoxysilane dyes. Their structures were confirmed by elemental analysis, H-1 NMR, FTIR, and UV-visible spectra; thermogravimetric analysis showed that the compounds displayed high thermal stability. The alkoxysilane dyes had very good solubility in common solvents and their nonlinear optical (NLO) activities were evaluated solvatochromically. The results indicate that the thiazole moiety on the electron acceptor side can significantly enhance molecular hyperpolarizability due to its lower aromatic delocalization energy and auxiliary electron-withdrawing ability. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：217 / 222

页数：6

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