Abstract Copper(II) chloride reacts with a double-thiourea ligand tethered on a silica xerogel through a reduction-oxidation process. XPS data suggest that the main products are copper(I) chloride supported on the matrix and a tetheredcopper(II) compound containing a heterocyclic ligand derived from the double thiourea by oxidative mono-desulfurization. The presence of this anchoredcomplex is also
systems of potential interest in catalysis. In order to ascertain the nature of the tethered metal species, the non-siloxanized dithiourea PhNHC(S)N(Et)(CH2)2NHC(S)NHPh (2) has been prepared. It reacts with [Ru3(CO)12] to give the complex (μ-H)RU3(CO) 9}2(SC(NPh)N(Et)(CH2)2NH(PhN)CS} (4), which contains two distinct hydrido carbonyl clusters bound to the two deprotonated thiourea groups.