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前文报道了外加磁场对吸附在硅胶表面上的芳砜光解反应的影响,本文报道外加磁场影响光化学反应的另一个例子——电子转移光敏化1,2-二苯乙烯的异构化。 近年来电子转移光敏化反应引起了有机光化学家们的极大注意。一些异构化、重排、裂解、氧化反应都可以通过电子转移机理敏化。电子转移光敏化的机理可以用(1)描述。图中A和D分别代表电子的受体和给体。
We have reported the effect of applied magnetic field on the photolysis of aryl sulfone adsorbed on the surface of silica gel. We report another example of the photochemical reaction induced by applied magnetic field - the isomerization of photo-sensitized stilbene by electron transfer. In recent years, electron-transfer photosensitization has attracted great attention from organic photochemists. Some isomerization, rearrangement, cracking, oxidation reaction can be sensitized by the electron transfer mechanism. The mechanism of electron transfer photosensitization can be described by (1). A and D in the figure represent electron acceptors and donors, respectively.