Perchlorate-induced structural diversity in thiosemicarbazone copper(ii) complexes provides insights to understand the reactivity in acidic and basic media

Abstract

The use of perchlorato ancillary ligands, with relatively low coordinating ability, nicely illustrates a rich structural diversity in thiosemicarbazonecopper(II), TSC-Cu(II), systems. Five compounds with formulae {[CuL(OH2)][CuL(OClO3)]}n·nClO4·2nH2O (1), [{CuL(OClO3)}2] (2), [Cu(HL)(OClO3)2(OH2)]...

Study of the Influence of a Solvent on the Crystal Structure of an Ethyl-Substituted Bisthiosemicarbazone Ligand

“…In the case of thiosemicarbazone ligands, the influence of different factors such as the presence of metal ions [4], the pH of the medium [5] or the solvent [6], among others, can lead to a desulfurization process, giving rise to the loss of the sulfur atom. Having this in mind, in this work, we decided to study the influence of the recrystallization solvent on the desulfurization process and the concomitant modification of the macrostructure of the bisthiosemicarbazone ligand H 2 L Et .…”