Synthesis and Crystal Structure of Tris[2-(2-imidazolinyl)phenolato]ruthenium(III)

The crystal structure of the Ru(III) complex with 2-(2-imidazolinyl)phenolate was determined by X-ray crystallography. The title compound was synthesized by a reaction of RuCl3 center dot nH(2)O and 2-(2-imidazolinyl)phenolate in ethanol. The compound crystallized in the monoclinic space group P2(1)/c and Z = 4 with cell parameters a = 10.2053(18)angstrom, b = 33.277(6)angstrom, c = 8.8733(15)angstrom, beta = 113.904(3)degrees, V = 2754.9(8)angstrom(3). The R-1 [I > 2 sigma(I)] and wR(2) (all data) values are 0.0711 and 0.1487, respectively, for all 6316 independent reflections. The title compound was found to take a meridional configuration. In the crystal, a centrosymmetric dimer structure was formed by intermolecular hydrogen-bonds between the coordinating phenolate-O atom (O2) of a ligand and a noncoordinating N-H bond (N5-H5A) in the symmetry equivalent ligand.