Infrared spectra of asymmetrically substituted tetraphenylporphyrins View Full Text


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Article Info

DATE

1991-01

AUTHORS

R. É. Garibov, E. M. Danilenko, A. K. Sokolov, G. B. Maravin, G. V. Ponomarev

ABSTRACT

The Z and D isomers of 2-methoxycarbonylvinyl-5,10,15,2D-tetraphenylporphyrin and their copper and zinc complexes have been investigated by means of ID spectroscopy. It has been shown that when the electron-acceptor methoxycarbonylvinyl group is substituted into the β-pyrrole position of the porphyrin ring, the character of conjugation between the π-electron systems of the porphyrin macrocycle and the phenyl rings remain substantially unchanged. Also, there is no appreciable conjugation of the electron clouds of the tetraphenylporphyrin molecule and the methoxycarbonylvinyl. A series of infrared absorption bands has been registered for isomers of the tetraphenylporphyrin derivatives that were investigated. It has been found that the frequencies of three metal-sensitive bands of the IR spectra will vary depending on the nature of the cental metal ion; the electronic nature of such behavior of these bands is examined. More... »

PAGES

103-107

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01372934

DOI

http://dx.doi.org/10.1007/bf01372934

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1040254176


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