Acta Cryst. (2012). E68, m1165
[ doi:10.1107/S1600536812032187 ]
Abstract: In the title compound, [Cu(C8H8NO3)2], the nearly planar molecule (r.m.s. deviation = 0.037 Å) is centrosymmetric with the CuII atom lying on an inversion center. The CuII atom is tetracoordinated, displaying a slightly distorted square-planar geometry. The main deviation from the ideal geometry is seen in the differences in the Cu-O [1.8833 (10) Å] and Cu-N [1.9405 (13) Å] bond lengths, while angular deviations are less than 3°. Intramolecular O-HO and intermolecular Csp2-HO hydrogen bonds form S(5) and R22(8) ring motifs, respectively. The latter interaction results in chains of molecules along .
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