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Production and microwave spectra of dithioformic acid, HCSSH

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Hitherto unknown dithioformic acid, HCSSH, has been produced by pyrolysis (300°C) of methanetrithiol, HC(SH)3, and identified by the microwave spectrum (18-40 GHz) of its most abundant species H12C32S32SH. Rotational transitions of this species in its ground state have been assigned to a trans and a cis rotamer. Both rotamers are planar, the trans conformer being the more stable by ca. 350 cm-1 mole-1. For each rotamer spectra of molecules in two vibrationally excited states have been assigned. Frequencies of transitions of importance for search for HCSSH in interstellar space are reported.

TidsskriftJournal of Molecular Spectroscopy
Udgave nummer3
Sider (fra-til)401-408
Antal sider8
StatusUdgivet - 1 jan. 1978

ID: 214011934