The phosphorescence of 4H-Pyran-4-thione (cas 1120-93-0): large quantum yields from room-temperature fluid solutions
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Add time:09/26/2019 Source:sciencedirect.com
The spectra, phosphorescence quantum yields and triplet lifetimes of 4H-pyran-4-thione (PT) in fluid solution at room temperature have been measured. In inert perfluoroalkane solvents at 293 K, the phosphorescence quantum yield of PT is 0.33 on excitation to S2 and 0.47 on direct excitation to T1. The reasons for these extremely large radiative yields are discussed.
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