Vibrationally Resolved Photoelectron Imaging of Au3H–

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• 作者：Zhiling Liu ; Zhengbo Qin ; Xia Wu ; Hua Xie ; Ran Cong ; Zichao Tang
• 刊名：Journal of Physical Chemistry A
• 出版年：2014
• 出版时间：February 13, 2014
• 年：2014
• 卷：118
• 期：6
• 页码：1031-1037
• 全文大小：314K
• ISSN：1520-5215

文摘

We report a combined photoelectron velocity map imaging spectroscopy and density functional theory investigation on the Au₃H^{鈥?/sup> anion. Transition between the anionic electronic ground state and the neutral electronic ground state is revealed. Vibrationally resolved spectra were recorded at two different photon energies, providing a wealth of spectroscopic information for the electronic ground state of the Au₃H. Franck鈥揅ondon simulations of the ground-state transition are carried out to assist in the assignment of the vibrationally resolved spectra. The electron affinity and vertical detachment energy of Au₃H are measured to be 2.548 卤 0.001 and 2.570 卤 0.001 eV, respectively. Three stretching vibrational modes are determined to be activated upon photodetachment, with the frequencies of 2100 卤 100, 177 卤 10, and 96 卤 10 cm鈥?.}