[1,1′-Bis(diphenylphosphino)ferrocene]carbonyl[dihydrobis(pyrazol-1-yl)borato]hydridoruthenium(II) acetone solvate

In the title compound, [FeRu(C(17)H(14)P)(2)(C(6)H(8)BN(4))H(CO)]center dot-C(3)H(6)O, the Ru(II) ion is coordinated in a distorted octahedral environment involving a hydride ligand, a carbonyl ligand and two bidentate ligands. Of the two bidentate ligands, the bulky 1,1'-bis(diphenylphosphino) ferrocene (dppf) ligand chelates with a larger bite angle of 101.90 (2)degrees, whereas the bite angle of the [H(2)Bpz(2)](-) ligand (pz = pyrazolyl) is 85.67 (7)degrees. The latter ligand creates an RuN(4)B six-membered ring with a boat conformation, which puckers towards the site of the small hydride ligand. The hydride ligand is cis with respect to the carbonyl ligand and trans to one of the P atoms of the dppf ligand. In the crystal structure, there are weak intermolecular C-H center dot center dot center dot O hydrogen bonds between complex molecules and acetone solvent molecules.