Low-frequencyPublishing vibrational spectra and capacity for self-association of organomercury derivatives of thiols

Abstract

1. The low-frequency IR and Raman spectra (150–400 cm−1) of the phenylmercury derivatives of a series of aliphatic and aromatic thiols have been studied in the condensed phase and in solution. The influence of intermolecular coordination interactions on the frequency and half-width of the stretching vibrations of S-Hg has been examined. 2. The capacity for self-association of phenylmercury derivatives of aliphatic thiols is lower than for substituted thiophenol, and for substituted aliphatic thiols the capacity for self-association falls with increase in the carbon chain length, and especially with branching. 3. Phenylmercury derivatives of aromatic and aliphatic thiols are more prone to selfassociation than to coordination with pyridine.