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. 2011 Sep 1;67(Pt 9):m1244-5.
doi: 10.1107/S1600536811032090. Epub 2011 Aug 17.

Diaqua-(5-carb-oxy-benzene-1,3-dicarboxyl-ato-κO,O)(6,6'-dimethyl-2,2'-bipyridine-κN,N')nickel(II) hepta-hydrate

Wen-Wen Shan  1 , Han-Lin Xiong, Chong-Zhen Mei
Affiliations

Diaqua-(5-carb-oxy-benzene-1,3-dicarboxyl-ato-κO,O)(6,6'-dimethyl-2,2'-bipyridine-κN,N')nickel(II) hepta-hydrate

Wen-Wen Shan et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, [Ni(C(9)H(4)O(6))(C(12)H(12)N(2))(H(2)O)(2)]·7H(2)O, the Ni(II) atom is six-coordinated by two O atoms from a chelating carboxyl-ate group of a 5-carb-oxy-benzene-1,3-dicarboxyl-ate ligand, two O atoms of two water mol-ecules and two N atoms from a 6,6'-dimethyl-2,2'-bipyridine ligand in a distorted octa-hedral geometry. The compound exhibits a three-dimensional supra-molecular structure composed of the complex mol-ecules and lattice water mol-ecules, which are linked together by inter-molecular O-H⋯O hydrogen bonds and partly overlapping π-π inter-actions between the pyridine and benzene rings [centroid-centroid distances = 3.922 (2) and 3.921 (2) Å]. One of the lattice water mol-ecules is disordered over two positions in an occupancy ratio of 0.521 (6):0.479 (6).

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Figures

Fig. 1.
Fig. 1.
Molecular structure of the title compound. Displacement ellipsoids are drawn at the 50% probability level. Irrespective H atoms and the disordered O4W' are omitted for clarity.
Fig. 2.
Fig. 2.
A view of the supramolecular layer in the title compound. Dotted lines represent hydrogen bonds and π–π interactions [centroid–centroid distances = 3.922 (2) and 3.921 (2) Å].
Fig. 3.
Fig. 3.
The three-dimensional supramolecular structure connected by interlayer hydrogen bonds (dotted lines).
See this image and copyright information in PMC

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