1H NMR spectral evidence for a specific host-guest complexation induced charge localization in squaraine dyes

被引：19

作者：

Ajayaghosh, A ^{[1
]}

Arunkumar, E ^{[1
]}

机构：

[1] CSIR, Reg Res Lab, Div Chem Sci, Photosci & Photon Unit, Trivandrum 695019, Kerala, India

来源：

ORGANIC LETTERS | 2005年 / 7卷 / 15期

关键词：

D O I：

10.1021/ol050612u

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Experimental support is provided for the charge localization in squaraines, a class of fundamentally and technologically important organic dyes, by H-1 NMR analysis through a host-guest complexation approach. Specific binding of Ca2+ ions to the squaraine 2 with a podand sidearm resulted in a charge-localized structure 2a with dramatic shifts and resolution of the proton signals when compared to those of 2.

引用

页码：3135 / 3138

页数：4

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