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.

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