Substituted thioureas. Part I. Study of trimethylthiourea and its complexes with zinc(II)

Abstract

The n.m.r. spectra of trimethylthiourea show the presence, both in acetone and in chloroform solutions, of only one conformer with two methyl groups cis to the sulphur atom. Hydrogen bonded interactions, intermolecular and to the solvent, have been detected. The spectra of the complexes, in acetone solution, do not reveal the presence of intramolecular hydrogen bonding but only interactions with the solvent.