Crystal structure of the reaction product of copper(II) nitrate with α-(3,3-Dimethyl-3,4-dihydro-1-isoquinolyl)hydroxy-iminoacetonitrile [Cu3(μ3-OH)(μ-L)3(NO3)2(H2O)] • 2H2O

The coordination compound [Cu-3(mu(3)-OH)(mu-L)(3)(NO3)(2)(H2O)] center dot 2H(2)O (I), where L is the alpha-(3,3-dimethyl-3,4-dihydro-1-isoquinolyl)hydroxyiminoacetonitrile anion, has been synthesized. The crystal and molecular structure of I was determined by X-ray diffraction (Enraf-Nonius CAD4, MoK (alpha) radiation, graphite monochromator, omega-scan mode, 2 theta(max) = 49.96 degrees, 7673 unique reflections, a = 12.745(3) angstrom, b = 13.726(3)angstrom, c = 28.835(6)angstrom, beta = 93.44(3)degrees, V = 5035.2(17) angstrom(3), Z = 4, space group P2(1)/c). In the trimer complex I, the copper atoms are combined by a bridging hydroxy group. The copper atoms are additionally linked pairswise by three tridentate chelating bridging organic anions coordinated to the Cu(II) atoms by the N and O atoms of the deprotonated oxime group and by the N atom of the dihydroisoquinoline moiety.