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EPR study of oriented photoexcited triplets of porphyrins and chlorophylls in a liquid crystal

✍ Scribed by Varda Grebel; Haim Levanon

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
660 KB
Volume
72
Category
Article
ISSN
0009-2614

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✦ Synopsis

An EPR stud) of the photoexcIted triple: state of porphyrms, Chl a and the covalently linked dlmer of Zn pyrochlorophylhde a. m a hquld crystal, I: reported The metalloporphyrms mteract to form exclmers The low intramolecular energy transfer rate m the dlmcr (5 106s-') suggests that the unfolded form predommates. * The porphynns were kmdly provided to us by Professor A.D AdIer. The covalently hnked duner of zmc pyrochlorophylhde a was made avadable to us by Professor G.L Gloss and Dr J.R. Norm The chlorophyll a was produced UI this laboratory and the phase V hquld crystal (Merck. E, Darmshdt, W. Germnay) was kmdly provided to US by Professor Z. Luz

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