Abstract
In the title compound, [Ni(C6H3ClNO2)2(H2O)4]·4H2O, the NiII ion is located on an inversion centre and is octahedrally coordinated by four O atoms from four water molecules in the equatorial plane and two O atoms of two 6-chloro-3-carboxylate ligands in axial positions. There are also four lattice water molecules present. The organic ligands are bound to the NiII ion in a monodentate manner through a carboxylate O atom. There is one strong intramolecular O—H⋯O hydrogen bond and six intermolecular O—H⋯O and O—H⋯N hydrogen-bonding interactions in the packing, resulting in a complex three-dimensional network structure.
Highlights
In the title compound, [Ni(C6H3ClNO2)2(H2O)4]Á4H2O, the NiII ion is located on an inversion centre and is octahedrally coordinated by four O atoms from four water molecules in the equatorial plane and two O atoms of two 6-chloro-3carboxylate ligands in axial positions
The organic ligands are bound to the NiII ion in a monodentate manner through a carboxylate O atom
Symmetry codes: (i) −x, −y, −z+1; (ii) x, y−1, z; (iii) −x, −y−1, −z+1; (iv) −x, −y−1, −z+2; (v) x, y+1, z; (vi) −x+1, −y, −z+1
Summary
In the title compound, [Ni(C6H3ClNO2)2(H2O)4]Á4H2O, the NiII ion is located on an inversion centre and is octahedrally coordinated by four O atoms from four water molecules in the equatorial plane and two O atoms of two 6-chloro-3carboxylate ligands in axial positions. There are four lattice water molecules present. The organic ligands are bound to the NiII ion in a monodentate manner through a carboxylate O atom. There is one strong intramolecular O—HÁ Á ÁO hydrogen bond and six intermolecular O—HÁ Á ÁO and O— HÁ Á ÁN hydrogen-bonding interactions in the packing, resulting in a complex three-dimensional network structure. Related literature For background to complexes based on 6-chloronicotinic acid, see: Long et al (2007); Li et al (2006)
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