sensitized and unsensitized irradiation of 1-(2-anthryl)-3,3-dimethyl-1-butene in benzene resulted in “one-way” isomerization from the cis- to trans-isomer giving almost 100% of the trans-isomer through a quantum chain process. No “return” isomerization from the trans- to cis- isomer occurred. The isomerization can be interpreted in terms of an adiabatic process in the triplet excited state.
苯中的1-(2-
蒽基)-
3,3-二甲基-1-丁烯的三重态敏化和不敏化辐照导致顺式异构体“单向”异构化,形成几乎100%的反式异构体通过量子链过程。没有发生从反式到顺式异构体的“返回”异构化。可以根据三重激发态的绝热过程来解释异构化。