The quantum yields of azobenzene photoisomerization in methanol solution were redetermined using newly obtained molar absorption coefficients of its cis- and trans-isomers. The results differ substantially from those published previously, especially in the range of the nπ* absorption band. Besides actinometry, these findings are relevant for applications of azobenzene derivatives in optical switching.

中文翻译：

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重新确定甲醇中的偶氮苯光异构化量子产率。

使用新获得的顺式和反式异构体的摩尔吸收系数，重新确定了甲醇溶液中偶氮苯的光异构化的量子产率。结果与先前公布的结果大不相同，尤其是在nπ*吸收带的范围内。除了光化学计量学外，这些发现还与偶氮苯衍生物在光开关中的应用有关。