Iron(II) and copper(I) complexes with some substituted 1,2-dithiole-3-thiones

Abstract

The ligand 1,2-dithiole-3-thione and some derivatives substituted in the 4- and/or 5-positions yield complexes of the type FeX₂L₂(X = Cl, Br, or I), Iron(III) chloride is reduced, to give FeCl₂L₂, and copper(II) salts yield copper(I) complexes of the types CuXL₂(X = Cl, Br, or NO₃) or CuXL₃(X = Cl, Br, or ClO₄). Physical studies, particularly electronic and Mössbauer spectra, show that the iron(II) compounds have pseudotetrahedral structures.