[HTML version][PDF version][CIF][3d view][Structure Factors][Supplementary Material][CIF check Report][Issue contents]  [Open access]

[Contents scheme]

Acta Cryst. (2011). E67, m775  [ doi:10.1107/S1600536811018411 ]

[[mu]-1,2-Bis(4-pyridyl)ethene-[kappa]2N:N']bis[aqua(pyridine-2,6-dicarboxylato-[kappa]3O2,N,O6)copper(II)] dihydrate

S. F. Lush

Abstract: In the title dinuclear CuII complex, [Cu2(C7H3NO4)2(C12H10N2)(H2O)2]·2H2O, the water-coordinated CuII cation is O,N,O'-chelated by a pyridine-2,6-dicarboxylate (pdc) dianion, and one pyridine N atom from a 1,2-bis(4-pyridyl)ethene ligand coordinates to the CuII cation, completing the CuN2O3 distorted square-pyriamidial geometry. The Cu-Owater bond [2.388 (4) Å] in the axial direction is much longer than the other Cu-O bonds. The 1,2-bis(4-pyridyl)ethene ligand is located across an inversion center with the mid-point of the C=C bond at the inversion center, and bridges two CuII cations, generating a centrosymmetric dinuclear complex. The crystal structure is stabilized by classical O-H...O and weak C-H...O hydrogen bonds.

Online 20 May 2011

Copyright © International Union of Crystallography
IUCr Webmaster