Activation energy barrier for intersystem crossing in platinum phthalocyanine
- 15 March 1976
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 54 (6) , 633-637
- https://doi.org/10.1139/p76-069
Abstract
Phosphorescence quantum yields and lifetimes of platinum phthalocyanine in α-chloronaphthalene solution are reported for temperatures from 1.3 K to 300 K. Activation energies of intersystem crossing are deduced and found to be Ea = 17 ± 3 cm−1 for crossing from the first excited singlet state to the lowest lying triplet state and Eap = 8 ± 1 cm−1 for crossing from the lowest lying triplet state to the singlet ground state.Keywords
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