From Zero- to Three-Dimensional Heterobimetallic Coordination Polymers with the [Pt{SSC-N(CH2COO)2}2]4– Metalloligand

Heterobimetallic compounds of the type M’2[Pt(L)2] (L = N-dithioato-iminodiacetate, {SSC-N(CH2COO)2}3–) containing different bivalent, oxophilic metals M’ were prepared in a straightforward manner from [Pt(H2L)2] and the respective metal acetates, M’(OAc)2 (M’ = Mg–Ba, M–Cu, Cd). X-ray structure determination revealed that the products exist as zero- (Mg), one- (Mn), two- (Fe, Co, Ni, Cd), or three-dimensional (Sr) assemblies in the solid state. As a result, the water solubilities and thermal stabilities of the products cover much wider ranges than it has been seen with M’2[M(L)2] compounds having different thiophilic metal centers (M = Ni, Pd, Pt). While most of the compounds show a typical diamagnetic (Mg–Ba, Cd) or paramagnetic (Mn, Co, Ni, Cu) behaviour at ambient temperature, for Fe2[Pt(L)2] ·4 H2O an antiferromagnetic interaction of the Fe atoms is assumed.