Copper diaryl-dithiocarbamate complexes and their application as single source precursors (SSPs) for copper sulfide nanomaterials†
Abstract
Copper diaryl-dithiocarbamate (DTC) complexes have been prepared including Cu(II) species, [Cu(S2CNAr2)2], and Cu(I) species [Cu{S2CN(p-tolyl)2}]n and [Cu{S2CN(p-tolyl)2}(PPh3)2] with some examples being characterised by single crystal diffraction. CV measurements show that, like the dialkyl-analogues, [Cu(S2CNAr2)2] can be both oxidised and reduced, but while oxidation is reversible, reduction is irreversible and results from loss of a DTC ligand. Both Cu(II) and Cu(I) complexes [Cu{S2CN(p-MeC6H4)2}2] and [Cu{S2CN(p-MeC6H4)2}]n have been used as single source precursors to prepare covellite (CuS) or digenite (Cu1.8S) nanoparticles in oleylamine.