5(2?Carboxy)phenylazo barbiturate diaqua copper(II) trihydrate: Characterization and crystal structure
摘要:
The title compound has been synthesized and characterized by standard spectroscopic techniques and magnetic susceptibility measurements and its structure has been determined by monocrystal X-ray diffraction. The complex crystallizes in the monoclinic space group P2(1)/c in a cell of dimensions a = 11.432(3), b = 6.927(2), c = 21.289(8) angstrom, beta = 106.54(4)degrees, V = 1616.1(9) angstrom3, D(c) = 1.758 Mg m-3, D(flotation) = 1.76 Mg m-3, M(w) = 427.8, mu(CuKalpha) = 2.47 mm-1, F(000) = 876. The structure refined to a final R of 0.041 for 1290 observed independent reflections. The copper atom is coordinated by the nitrogen atom of the azo group next to the phenyl ring, the oxygen atom of one of the carbonyl groups of the barbituric moiety and one of the oxygen atoms of the carboxylate, closing two six-member chelate rings. Two water molecules complete a typical 4 + 1 square-based pyramidal environment.