Synthesis and crystal structure of a novel compound constructed from tris-(2,2′-bipy)ruthenium(II) and decatungstate

Self-assembly of tris-[2,2′-bipyridine]ruthenium(II) chloride with decatungstate produced a novel cation radical salt, [Ru(bpy)3]2[W10O32]·3DMSO. This is the first product of 2,2′-bipyridineruthenium(II)-polyoxometalates species. Crystal data: Monoclinic, P21/c, a=12.902(3) Å, b=21.487(3) Å, c=15.854(5) Å, β=93.46(2)°, V=4387(2) Å3, Z=2, R1=0.0599, wR2=0.1183. X-ray crystallographic study showed that the crystal structure was constructed by electrostatic attraction and C–H⋯O hydrogen bonds between tris-[2,2′-bipyridine]ruthenium(II) and decatungstate polyanion. The tris-[2,2′-bipyridine]ruthenium molecules occupy cavities in the polyoxometalate lattice ordered along b-axis.