Tetrahydroquinoxaline based squaraines: Synthesis and photophysical properties

被引：43

作者：

Chandrasekaran, Yogesh ^{[1
]}

Dutta, Gitish K. ^{[1
]}

Kanth, Raja Bhaskar ^{[1
]}

Patil, Satish ^{[1
]}

机构：

[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

DYES AND PIGMENTS | 2009年 / 83卷 / 02期

关键词：

NIR dyes; Squaraines; Tetrahydroquinoxaline; Donor-acceptor-donor; Bathochromic shift; Job's plot; SINGLET OXYGEN GENERATION; SQUARYLIUM CYANINE DYES; ONE-POT SYNTHESIS; FLUORESCENT CHEMOSENSOR; PHOTOACTIVE CHEMOSENSORS; UNSYMMETRICAL SQUARAINES; PHOTODYNAMIC THERAPY; DIVALENT COPPER; ABSORBING DYES; AQUEOUS-MEDIA;

D O I：

10.1016/j.dyepig.2009.04.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Tetrahydroquinoxaline based squaraine dyes synthesized by the condensation reaction between squaric acid and different tetrahydroquinoxaline derivatives are described. The squaraines gave a strong intense peak at 700 nm and were found to exhibit good molar extinction coefficient (>10(5) M-1 cm(-1)). Metal binding studies were carried out with different metal ions and it was found that it was selective in the case of copper metal. Using job's plot it was ascertained that the squaraines bind to the copper metal in the ratio of 2:1. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：162 / 167

页数：6

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