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metal-organic compounds
The molecular structure of tris(4,4'-bipyrimidine)ruthenium(II) {[Ru(bpm)3]2+} in the title compound {[Ru(C8H6N4)3](PF6)2.C3H6O} is similar to that of tris(2,2'-bipyridine)ruthenium(II) {[Ru(bpy)3]2+}. However, replacement of C by N in the heterocyclic ring alters the molecular electrostatic potential of the complex cation and hence the chiral recognition and self-assembling, yielding a crystal packing pattern that is unique among known structures of related trisdiimine-metal complexes.