Hoebeke M, Seret A, Piette J, van de Vorst A
Institut de Physique, Université de Liège, Belgium.
J Photochem Photobiol B. 1988 May;1(4):437-46. doi: 10.1016/1011-1344(88)85004-8.
The quantum yields of singlet oxygen production by merocyanine 540 have been measured during visible light irradiation performed in methanol and ethanol. These appear to be one hundred times smaller than the quantum yield for rose bengal measured under the same conditions. Flash photolysis experiments demonstrate the ability of merocyanine 540 molecules to isomerize under visible light irradiation: the isomerization quantum yields are about 0.65 in both ethanol and methanol. This information combined with the fluorescence quantum yield data account for the low values for singlet oxygen production.
在甲醇和乙醇中进行可见光照射期间，已测量了部花青540产生单线态氧的量子产率。这些量子产率似乎比在相同条件下测量的孟加拉玫瑰红的量子产率小一百倍。闪光光解实验证明了部花青540分子在可见光照射下异构化的能力：在乙醇和甲醇中的异构化量子产率均约为0.65。这些信息与荧光量子产率数据相结合，解释了单线态氧产生的低值。
