Aquabis(3-methoxy-2-pyridonato)(2,2':6',2''-terpyridine)ruthenium(II)-acetonitrile-water (1/1/1).

The title compound, [Ru(C(6)H(6)NO(2))(2)(C(15)H(11)N(3))(H(2)O)] x CH(3)CNx H(2)O, is a transfer hydrogenation catalyst supported by nitrogen-donor ligands. This octahedral Ru(II) complex features rare monodentate coordination of 3-methoxy-2-pyridonate ligands and interligand S(6)S(6) hydrogen bonding. Comparison of the title complex with a structural analog with unsubstituted 2-pyridonate ligands reveals subtle differences in the orientation of the ligand planes.

A Heterobimetallic Vanadium-Manganese Complex as a Model for the Structural Dynamics in Oxo-Bridged Metal Dimers.

The heterobimetallic complex 1, [LV(&mgr;-O)(&mgr;-OAc)(2)MnL] (where L = hydridotris(pyrazolyl)borate), has been synthesized and characterized. X-ray crystal structural analysis of 1 gave the following parameters: C(24)H(29)B(2)N(13)O(5)VMn, Cmc2(1), a = 13.364(2) Å, b = 17.

Vanadium Hydrotris(pyrazolyl)borate Complexes of Diphenyl Phosphate. Heterometallic Complexes of the [LV{(PhO)(2)PO(2)}(3)](-) Fragment.

The synthesis and characterization of nine trinuclear, mixed metal complexes of the type [LV{&mgr;-(PhO)(2)PO(2)}(3)](2)M, where the vanadium is in the 3+ oxidation state, L = hydrotris(pyrazolyl)borate, and M = Ba(II) (1), Ca(II) (2), Mg(II) (3), Mn(II) (4), Co(II) (5), Ni(II) (6), Fe(II) (7), 2 Na(I) (8), Al(III) (9), and La(III) (10), are described. X-ray crystal structural analysis of 1, 3, and 4 gave the following parameters: 1, C(92)H(84)B(2)N(12)O(24)P(6)Cl(4)BaV(2), C2/c, a = 26.730(5) Å, b = 15.

Non-Template-Centered, Closed Tetravanadium Phosphate and Phosphonate Clusters.

Tetranuclear V(III) complexes, [HB(pz)(3)](4)V(4)(&mgr;-C(6)H(5)OPO(3))(4) (I), its acetonitrile solvate (I.4CH(3)CN), and [HB(pz)(3)](4)V(4)(&mgr;-O(2)NC(6)H(4)OPO(3))(4).4C(7)H(8).