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

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Title:	H NMR spectral evidence for a specific host-guest complexation induced charge localization in squaraine dyes
Authors:	Ajayaghosh, A Arunkumar, E
Keywords:	Band-gap polymers Photodynamic therapy Fluorescence Polysquaraines Cytotoxicity Foldamer
Issue Date:	2005
Publisher:	American Chemical Society
Citation:	Organic Letters 7(15):3135-3138;Jul 2005
Abstract:	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.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/1332
ISSN:	1523-7060
Appears in Collections:	2005

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