Abstract
The photodetachment spectra of AgOH− and AgSH− have been investigated using photoelectron velocity map imaging (PE-VMI). In combination with the ab intio calculations, vibration-resolved photoelectron spectra yield accurate electron affinities of 1.177(15) eV and 1.193(10) eV for AgOH and AgSH, respectively. Franck-Condon simulations of the ground state transition are performed to assign vibrational structure in the spectra and to assist us in identifying the observed spectral bands. And the frequencies are extracted to be 475(35) cm−1 for AgOH and 358(30) cm−1 for AgSH, respectively. A variety of theoretical calculations are analyzed to reveal the chemical bonding characteristics of AgOH−1/0 and AgSH−1/0, which indicates that Ag-X bonding in AgXH−1/0 (X = O and S) species is much more ionic than covalent.
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