Abstract
Mixed valence complexes have been obtained using in a one pot synthesis the complexing and reducing properties of thiohydantoin (ThH). Two complexes, i.e. [Pt(ThH)4][PtCI6] and [Pt(Th)2][Pt(ThH)2CI4] have been obtained. These complexes having platinum atoms in two different oxidation states and bridged by halogen atoms are compared in view of their conductive properties to the classical class II mixed valence complexes such as Wolffram's red salt.