Synthesis and crystal structure of a Co(II) complex with taurine-5-methyl-2-hydroxyisophthalaldehyde Schiff bases [Co(C13H16N2O7S2)(H2O)3]2•H2O

The title complex [CoL(H2O)(3)](2)center dot H2O (C26H46N4O21S4Co2), where L = taurine-5-methyl-2-hydroxyisophthalaldehydes, has been synthesized and characterized by IR and X-ray diffraction analysis. The crystal of the complex belongs to the triclinic system, space group P (1) over bar, with a = 11.197(4), b = 13.309(5), c = 14.486(5) angstrom, alpha = 78.827(13), beta = 70.547(11), gamma = 81.058(13)degrees, M-r = 996.77, S = 1.08, V = 1987.2(13) angstrom(3), Z = 2, D-c = 1.666 g/cm(3), F(000) = 1032, mu = 1.131 mm(-1), R = 0.0633 and wR = 0.1293. According to the structural analysis, the Co(II) ion adopts a slightly distorted six-coordinated octahedral geometry. One N atom of the Schiff base of each molecule was hydrogenated to form hydrogen bond with O atom. Two coterminous molecules packed in one crystal water molecule are linked by intermolecular hydrogen bonds, thus generating an infinite chain constructed by hydrogen bonds.