SINGLET OXYGEN PRODUCTION AND PHOTOISOMERIZATION - 2 COMPETITIVE PROCESSES FOR MEROCYANINE-540 IRRADIATED WITH VISIBLE-LIGHT
SINGLET OXYGEN PRODUCTION AND PHOTOISOMERIZATION - 2 COMPETITIVE PROCESSES FOR MEROCYANINE-540 IRRADIATED WITH VISIBLE-LIGHT
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DOI：
10.1016/1011-1344(88)85004-8
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发表时间：
1988-05-01
影响因子：
5.4
通讯作者：
VANDEVORST, A
中科院分区：
文献类型：
--
作者：
HOEBEKE, M;SERET, A;VANDEVORST, A
在甲醇和乙醇中进行可见光照射期间，测量了mercury 540产生单线态氧的量子产率。这些似乎比在相同条件下测量的玫瑰红的量子产额小一百倍。闪光光解实验表明mercury 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约为0.65。该信息与荧光量子产率数据相结合，说明单线态氧产生的低值。
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.