Abstract
Reactions of zinc, cadmium and mercury atoms with hydrogen sulfide were studied by matrix-isolation infrared spectroscopy. Insertion products HMSH (M=Zn, Cd, Hg) and HMMSH (M=Zn, Cd) were identified by H234S and D2S isotopic substitutions and by theoretical vibrational frequency calculations (B3LYP, BPW91, CCSD(T)). The absorptions of HZnSH and HCdSH molecules increased on annealing in solid argon, suggesting the reactions occur without activation energy; however, the HHgSH molecule was observed on full-arc irradiation. In addition our HMMSH molecules provide simple model to understand the bonding of {M2}2+ core complexes.
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