Synthesis and characterization of new thienylpyrrolyl-benzothiazoles as efficient and thermally stable nonlinear optical chromophores

被引：93

作者：

Batista, Rosa M. F.

Costa, Susana P. G.

Malheiro, Elisabeth L.

Belsley, Michael

Raposo, M. Manuela M.

机构：

[1] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal

[2] Univ Minho, Dept Fis, P-4710057 Braga, Portugal

来源：

TETRAHEDRON | 2007年 / 63卷 / 20期

关键词：

pyrrole; benzothiazole; solvatochromism; hyper-Rayleigh (HRS) scattering; thermal stability; nonlinear optical (NLO) material;

D O I：

10.1016/j.tet.2007.03.065

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis and full characterization of new chromophores with second-order nonlinearities containing thienylpyrrolyl and benzothiazolyl moieties are reported. The solvatochromic behavior of the compounds was investigated. The hyperpolarizabilities beta of derivatives 4-6 were measured using hyper-Rayleigh scattering and thermogravimetric analysis (TGA) was used to evaluate their thermal stability. The experimental results indicate that strong nonlinearity is balanced by good thermal stability especially for chromophores 6b and 6c, making them good candidates for NLO applications. (C) 2007 Elsevier Ltd. All rights reserved.

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页码：4258 / 4265

页数：8

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