用光电子成像技术和从头算法研究Ag-(CH30H)x(x=1,2)和AgOCH3-.从AgOCH3-振动分辨的光电子谱得到AgOCH3-的绝热和垂直电离能分别为1.29(2)和1.34(21eV.Ag-(CH3OH)1,2的结构可用甲醇溶剂化的Ag-来表征,其负电荷主要定域在金属Ag上.Ag-(CH30H)x(x=1,2)的垂直电离能随着甲醇溶剂分子个数的增加和溶剂化稳定作用的增强而逐渐变大.Ag-(CH3OH)2内存在甲醇分子问形成的传统氢键和甲醇分子与Ag-形成的离子氢键.
The AgOCH3- and Ag-(CH3OH)x(x=l, 2) anions are studied by photoelectron imaging as well as ab initio calculations. The adiabatic and vertical detachment energies (ADE and VDE) of AgOCH3- are determined as 1.29(2) and 1.34(2) eV, respectively, from the vibrational resolved photoelectron spectrum. The Ag-(CH3OH)l,2 anionic complexes are characterized as metal atomic anion solvated by the CH3OH molecules with the electron mainly localized on the metal. The photoelectron spectra of Ag-(CH3OH)x (x=O, 1, 2) show a gradual increase in VDE with increasing x, due to the solvent stabilization. Evidence for the methanol-methanol hydrogen bonding interactions appears when the Ag- is solvated by two methanol molecules.