Studies of T2→S2 intersystem crossing for coumarins
Journal
Chemical Physics Letters
Journal Volume
188
Journal Issue
1-2
Pages
49-53
Date Issued
1992
Author(s)
Abstract
Transient absorption and two-step laser-induced fluorescence studies of coumarin (CM), 7-hydroxy-4-methylcoumarin (7HMC) and 7-diethylamino-4-methylcoumarin (7DAMC) were performed to determine Φts, the yield of T2→S1 ISC. Φts was measured to be 8.4×10-4 and 1.4×10-3 for 7HMC and 7DAMC, respectively. The results can be rationalized by the proposed mechanism incorporating Tnπ*→Sππ* ISC. © 1992.
SDGs
Type
journal article