期刊
CHEMICAL PHYSICS LETTERS
卷 467, 期 1-3, 页码 179-185出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2008.10.076
关键词
-
资金
- Department of Atomic Energy and Department of Science and technology, Government of India, New Delhi
The effects of meso-substituents and porphyrin core-modification on electronic communication between ferrocene and porphyrin in covalently linked porphyrin-ferrocene conjugates are described. The electrochemical and photophysical studies indicated that the electronic communication between porphyrin and ferrocene is strong when meso-substituents are five membered aryl groups than six membered aryl groups. This may be traced to the near orthogonal arrangement of porphyrin ring with six membered meso-aryl groups leading to weaker interaction between the porphyrin and ferrocenyl groups in conjugates, while the five membered furyl and thienyl groups are closer to the porphyrin plane than being orthogonal. Molecular orbital studies are performed at semiempirical PM3 and BLYP levels to rationalize the results. (C) 2008 Published by Elsevier B.V.
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