Photochemistry of 5-phenyltricyclo[5.2.1.02,6]deca-4,8-dien-3-one: upper singlet excited state involved in intramolecular [2 + 2] photocycloaddition and long-lived triplet excited state in photodimerisation
作者:Toshio Ogino、Yoshiko Takahashi、Yoshiko Kobayashi、Kazuyuki Awano、Yoshimasa Fukazawa
DOI:10.1039/c39920000103
日期:——
Upon π,π* excitation, 5-phenyltricyclo[5.2.1.02,6]deca-4,8-dien-3-one predominantly undergoes intramolecular [2 + 2] photocycloaddition probably via the higher singlet excited state (S2), while, upon n,π* excitation, it undergoes predominantly photodimerisation via a relatively long-lived triplet excited state.
在π,π*激发下,5-苯基三环[5.2.1.02,6]癸-4,8-二烯-3-酮主要通过较高单线态激发态(S2)发生分子内[2 + 2]光化学反应,而在n,π*激发下,它主要通过相对长寿命的三线态激发态发生光二聚反应。