发表论文 - 蒋 臣威
论文标题 | Ultrafast Cis-to-trans Photoisomerization of a Bridged Azobenzene Through npi* Excitation: Rotational Pathway is not Restricted. |
作者 | Chen-Wei Jiang, Rui-Hua Xie, Fu-Li Li et al. |
发表/完成日期 | 2012-02-01 |
期刊名称 | Chemical Physics Letters |
期卷 | 521 |
相关文章 | |
论文简介 | A bridged azobenzene was recently found by Siewertsen et al. to exhibit highly efficient photoisomerization through np⁄ absorption. In the work of the present Letter, cis-to-trans photoisomerization of this molecule in the gas phase was examined in detail via density-functional-based dynamical simulations. Our results indicate that rotation around the central NN bond is the dominant mechanism when this reaction proceeds via np⁄ excitation, and the bridging feature was found not to hinder the rotation. Nonadiabatic de-excitation occurred at an avoided crossing between the ground state and lowest singlet excited state near the midpoint of the rotational pathway. |