Record Details

Synthesis, spectral and electrochemical properties of cyclotriphosphazene appended with six metalloporphyrins

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Synthesis, spectral and electrochemical properties of cyclotriphosphazene appended with six metalloporphyrins
 
Creator RAO, MR
GHOSH, A
RAVIKANTH, M
 
Subject FERROCENYL DENDRIMERS
CRYSTAL-STRUCTURES
METAL-COMPLEXES
COORDINATION
PLATFORM
LIGANDS
REDOX
PORPHYRINS
CHEMISTRY
BEHAVIOR
Phosphazenes
Porphyrins
Metallation
Assemblies
Electrochemistry
Electron paramagnetic resonance
 
Description The metal derivatives (Co(II), Ni(II), Cu(II), Zn(II) and Sn(IV)) of hexaporphyrinato cyclotriphosphazene systems were prepared by treating the hexaporphyrin assembly on cyclotriphosphazene ring with the appropriate metal salt under standard metallation conditions. The complete metallation of all six porphyrin units in hexaporphyrin assembly required 10-12 h reflux as judged by the absorption spectroscopy. The metal derivatives were confirmed by molecular ion peak in mass spectra for all compounds. (31)P and (1)H NMR spectra for Ni(II), Zn(II) and Sn(IV) derivatives and ESR spectra for Cu(II) derivative also confirmed the complete metallation of all six porphyrin units. The hexametalloporphyrin assemblies are freely soluble in common organic solvents. The spectral, electrochemical and fluorescence studies indicate that the six porphyrin units in assemblies interact very weakly and retain their individual characteristic features in the ground and excited states. (C) 2011 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2012-06-26T06:59:28Z
2012-06-26T06:59:28Z
2011
 
Type Article
 
Identifier INORGANICA CHIMICA ACTA,372(1)436-441
0020-1693
http://dx.doi.org/10.1016/j.ica.2011.03.021
http://dspace.library.iitb.ac.in/jspui/handle/100/14078
 
Language English