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Synthesis and spectral properties of N4, N3S, and N2S2 porphyrins containing one, two, three, and four meso-furyl groups

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Title Synthesis and spectral properties of N4, N3S, and N2S2 porphyrins containing one, two, three, and four meso-furyl groups
 
Creator SANTOSH, G
RAVIKANTH, M
 
Subject porphyrins
meso-furyl
 
Description Porphyrins with N4, N3S, and N2S2 cores having one, two, three, and four furyl groups at the meso-positions were synthesized by following various methodologies and characterized by using mass spectrometry, NMR spectroscopy, elemental analysis, absorption, and fluorescence spectroscopic techniques. NMR studies indicated that by replacing the meso-aryl groups with meso-furyl groups, the β-pyrrole and β-thiophene protons of porphyrins experienced considerable downfield shifts, supporting the alteration of π-delocalization of porphyrins on the introduction of meso-furyl groups. The absorption and emission bands of porphyrins experienced red shifts on the introduction of meso-furyl groups and the magnitude of red shifts vary linearly with the number of meso-furyl groups. Thus, the spectral studies supported a systematic alteration in spectral properties on successive introduction of meso-furyl groups.
 
Publisher Elsevier
 
Date 2009-03-23T05:13:39Z
2011-11-25T20:11:57Z
2011-12-26T13:08:07Z
2011-12-27T05:56:07Z
2009-03-23T05:13:39Z
2011-11-25T20:11:57Z
2011-12-26T13:08:07Z
2011-12-27T05:56:07Z
2007
 
Type Article
 
Identifier Tetrahedron 63(33), 7833-7844
0040-4020
http://dx.doi.org/10.1016/j.tet.2007.05.099
http://hdl.handle.net/10054/1071
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1071
 
Language en