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Multiporphyrin Arrays on Cyclotriphosphazene Scaffolds

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Title Multiporphyrin Arrays on Cyclotriphosphazene Scaffolds
 
Creator KAUR, T
RAJESWARARAO, M
RAVIKANTH, M
 
Subject EXCITED-STATE PHOTODYNAMICS
ENERGY-TRANSFER
PORPHYRIN ARRAYS
ELECTRONIC COMMUNICATION
RUTHENIUM(II)
COORDINATION
ASSEMBLIES
METALLOPORPHYRINS
COMPLEXES
PLATFORM
 
Description We report the synthesis of first examples of hexaporphyrin and dodecaporphyrin assemblies on cyclotriphosphazene scaffold by adopting two different approaches based on Ru-pyridyl "N" coordination in decent yields. The multiporphyrin assemblies were confirmed by P-31, C-13, H-1, H-1-H-1 COSY, and NOESY NMR spectroscopic studies. The absorption studies showed 2-fold intensity enhancement with negligible changes in peak maxima compared to porphyrin monomers. The redox potentials of multiporphyrin assemblies showed the redox features of the constituted porphyrin monomers and supported weak interactions among the porphyrin units in noncovalent hexaporphyrin and dodecaporphyrin arrays.
 
Publisher AMER CHEMICAL SOC
 
Date 2014-12-28T12:33:21Z
2014-12-28T12:33:21Z
2014
 
Type Article
 
Identifier INORGANIC CHEMISTRY, 53(20)11051-11059
0020-1669
1520-510X
http://dx.doi.org/10.1021/ic501569e
http://dspace.library.iitb.ac.in/jspui/handle/100/16542
 
Language English