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Electron spin polarization in the photoexcited triplet state of porphyrins

✍ Scribed by H. Levanon; A. Wolberg

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
175 KB
Volume
24
Category
Article
ISSN
0009-2614

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✦ Synopsis

Electron spin polarization

in the photoescitrd triplet state of tetraphenyl porphyrin was detected at 100Β°K using EPR technique.

The zero Iield splitting parameters IDland IEI for the free base porphyrin were found to be 0.0369 ? 0.0005 and 0.0082 ? 0.0005 WI-'. respectively.

Detection

of optical spin polarization in the photoexcited triplet state provides us with important experimental data for the understanding of the dynamics associated with singlet and triplet coupling. Practically all of the experimental techniques detect the polariza-'_, :.: .

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