QUANTUM YIELD OF SINGLET OXYGEN PRODUCTION BY XANTHENE DERIVATIVES
QUANTUM YIELD OF SINGLET OXYGEN PRODUCTION BY XANTHENE DERIVATIVES
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DOI：
10.1111/j.1751-1097.1983.tb04472.x
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发表时间：
1983-01-01
影响因子：
3.3
通讯作者：
VANDEVORST, A
中科院分区：
文献类型：
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作者：
GANDIN, E;LION, Y;VANDEVORST, A
11种纯化的荧光素衍生物的单线态氧（1 O2）量子产率（v φ 1 O2）通过在水溶液和乙醇溶液中与（1 O2）受体反应来测定;在两种溶剂中，v φ 1 O2随着卤化的增加而增强。色氨酸和2，2，6，6-四甲基哌啶酮不适合于在这些系统中测定v φ 1 O2;然而，使用9，10-二丙酸蒽酸和p-亚硝基二甲基苯胺与咪唑衍生物结合适合于水中的1 O2检测。这两种方法导致的结果非常一致。与在乙醇中一样，v φ 1 O2等于三重态量子产率（v φ T），两种溶剂之间的比较表明，v φ T在水中大于在乙醇中。用多色光获得的值与用单色光获得的公布数据之间的比较表明荧光素衍生物的三重态量子产率是波长无关的。
The singlet oxygen (1O2) quantum yield (.vphi.1O2) of 11 purified fluorescein derivatives was determined by reaction with (1O2) acceptors in aqueous and ethanolic solutions; in both solvents .vphi.1O2 was enhanced with increasing halogenation. Tryptophan and 2,2,6,6-tetramethylpiperidone were unadapted for the determination of .vphi.1O2 in these systems; however, the use of 9,10-dipropionic anthracene acid and p-nitrosodimethylaniline in conjunction with imidazole derivatives was suitable for 1O2 detection in water. Both methods led to results in excellent agreement. As in ethanol, .vphi.1O2 was equal to the triplet state quantum yield (.vphi.T), the comparison between the 2 solvents showed that .vphi.T in water was greater than in ethanol. The comparison between the values obtained with polychromatic light with published data obtained with monochromatic light suggests that the triplet quantum yield of fluorescein derivatives is wavelength-independent.