A Novel Cyanide-Bridged Thulium-Nickel Heterobimetallic Polymeric Complex {(H2O)2(DMF)10Tm2(Ni(CN)4)2}(Ni(CN)4) including O-H…N Hydrogen Bond

The synthetic procedure for the preparation of heterobimetallic complexes containing lanthanide and transition metals have been intensively developed because they can be used in catalysis 1,2 and material applications. 3 Direct metal bonds between transition metals and lanthanide metals are relatively rare 4 and the heterobimetallic complexes with bridging ligands should be more accessible. The cyanide groups of [M(CN)4] 2� (M = transition metal) can be used as bidentate ligands which bridge metal atoms. 5,6 Therefore, our focus has been on synthesizing the lanthanide and transition heterobimetallic complexes containing cyanidebridged ligands. We have investigated the preparation of cyanide-bridged lanthanide and transition heterobimetallic complexes. 7 Recently, we have been interested in the hetero