Synthesis and Structural Characterization of Novel Thulium-Platinum Heterobimetallic Complex {(DMF)₁₀Tm₂[Pt(CN)₄]₃}∞

Incorporation of different metal atoms into the heterometallic complex may be accomplished through the formation of metal-metal bonds, or bridging ligands. Direct metal bonds between transition metals and electropositive lanthanide metals are relatively rare and the heterobimetallic complexes with bridging ligands should be more accessible. The cyano groups of [M(CN)₄]^2- can be used as bidentate ligands which bridge metal atoms. Therefore, the heterobimetallic complexes containing cyanide-bridged lanthanide-transition metal arrays have been of interest. Recently, we reported the Tm-Pd heterobimetallic complex {(DMF)₁₀Tm₂[Pd(CN)₄]₃}∞ and have focused on the syntheses of a series of thulium-group VIII transition metal complexes using bridging cyanide ligand. Here we describe the preparation and the structural characterization of a novel one dimensional array Tm-Pt heterobimetallic complex of the type {(DMF)₁₀Tm₂[Pt(CN)₄]₃}∞ prepared quantitatively from the reaction of TmCl₃ and K₂Pt(CN)₄ (2:3 molar ratio). In this complex, Tm ions are bridged by the bidentate Pt(CN)₄^2- anions