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A simple alternative method for preparing Sn(IV) porphyrins

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Title A simple alternative method for preparing Sn(IV) porphyrins
 
Creator SHETTI, VS
RAVIKANTH, M
 
Subject meso-furyl groups
photophysical properties
fluorescence properties
tin(iv) porphyrins
state properties
homo-porphyrin
sub-units
dyads
complexes
arrays
tin porphyrin
alternative method
chloroform
ethanol
meso-substituents
spectral properties
 
Description Sn(IV) porphyrins are highly desirable for various applications because of their stability, their preference for oxygen-donor ligands and because they possess properties which can be easily characterized using various spectroscopic techniques. The most established method for the preparation of the Sn(IV) porphyrins is refluxing the porphyrin with SnCl(2)center dot 2H(2)O in pyridine as solvent. Although this method works efficiently, we found that the work-up results in a lot of unwanted materials and using large quantities of pyridine as solvent is not good under laboratory conditions. In this paper, we show that the Sn(IV) porphyrins can be prepared easily by treating porphyrin with SnCl(2)center dot 2H(2)O in chloroform, dichloromethane and toluene as solvent containing 25-50% ethanol as co-solvent. The reaction works smoothly and involves simple work-up and straightforward chromatographic purification. The method works efficiently for meso and beta-substituted porphyrins. The spectral and electrochemical properties of various Sn(IV) were studied and our studies showed that the properties are sensitive to the nature of substituent present at the meso-position.
 
Publisher WORLD SCI PUBL CO INC
 
Date 2011-09-01T23:32:15Z
2011-12-26T12:59:50Z
2011-12-27T05:52:49Z
2011-09-01T23:32:15Z
2011-12-26T12:59:50Z
2011-12-27T05:52:49Z
2010
 
Type Article
 
Identifier JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 14(4), 361-370
1088-4246
http://dx.doi.org/10.1142/S1088424610002124
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12895
http://hdl.handle.net/10054/12895
 
Language en