Singlet oxygen quantum yield of sulfur and selenium analogs of psoralen.
The quantum yield of singlet oxygen production by eight newly synthesized sulfur and selenium analogs of psoralen irradiated with UV-A (366 nm) has been determined in CCl4 with the help of the steady state luminescence technique. The new psoralen derivatives are generally better singlet oxygen producers than psoralen itself. In particular, the replacement of selenophene for furan and/or of thiopyrone for pyrone induces an important enhancement of the singlet oxygen quantum yield.
Seret
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Physique Expérimentale, Université de Liège, Institut de Physique, Belgium.
Piette
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J
Jakobs
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Van de Vorst
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D011564:Furocoumarins / Q000737:chemistry / Q000528:radiation effects*; D010100:Oxygen; D010777:Photochemistry; D011789:Quantum Theory; D026082:Singlet Oxygen; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D014466:Ultraviolet Rays
D011564:Furocoumarins; D026082:Singlet Oxygen; D010100:Oxygen