Synthesis and characterization of a new {RuNO}6 complex, [Ru(NO)(bpb)Cl] (bpb = N,N′-bis(2-pyridinecarboxamide)-1,2-benzene dianion)

As part of our efforts to develop ruthenium nitrosyl compounds for use as nitric oxide delivery agents, a new six coordinate {RuNO}6 compound, [Ru(NO)(bpb)Cl] (bpb = N,N′-bis(2-pyridinecarboxamide)-1,2-benzene dianion) was prepared from the reaction between [Ru(NO)Cl(H2O)2] and N,N′-bis(2-pyridine carboxamide)-1,2-benzene. We report here the characterization of this new compound by 1H, 13C, HH COSY, HMQC and HMBC NMR spectroscopy, IR spectroscopy (νNO = 1867 cm−1) and ESI-MS (M + Na+ 505.9).