Abstract

In the title mononuclear complex, [Ni(C9H4N2O4)(H2O)5]·5H2O, the NiII atom is six-coordinated by one N atom from a 1H-benzimidazole-5,6-dicarboxyl­ate ligand and by five O atoms from five water mol­ecules and displays a distorted octa­hedral geometry. Inter­molecular O—H⋯O hydrogen-bonding inter­actions among the coordinated water mol­ecules, solvent water mol­ecules and carboxyl O atoms of the organic ligand and additional N—H⋯O hydrogen bonding lead to the formation of a three-dimensional supra­molecular network.

Highlights

  • In the title mononuclear complex, [Ni(C9H4N2O4)(H2O)5]5H2O, the NiII atom is six-coordinated by one N atom from a

  • Symmetry codes: (i) x−1, y, z; (ii) x, y, z−1; (iii) −x, −y+1, −z+1; (iv) x+1, y, z; (v) −x+1, −y+1, −z+1; (vi) −x+2, −y+1, −z+1; (vii) −x+1, −y+2, −z+1; (viii) x, y−1, z; (ix) x+1, y−1, z; (x) −x+1, −y, −z+1; (xi) x, y, z+1

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Summary

Republic of China

R factor = 0.056; wR factor = 0.167; data-to-parameter ratio = 13.7. In the title mononuclear complex, [Ni(C9H4N2O4)(H2O)5]5H2O, the NiII atom is six-coordinated by one N atom from a. 1H-benzimidazole-5,6-dicarboxylate ligand and by five O atoms from five water molecules and displays a distorted octahedral geometry. Intermolecular O—H O hydrogenbonding interactions among the coordinated water molecules, solvent water molecules and carboxyl O atoms of the organic ligand and additional N—H O hydrogen bonding lead to the formation of a three-dimensional supramolecular network. Symmetry codes: (i) x 1; y; z; (ii) x; y; z 1; (iii) x; y þ 1; z þ 1; (iv) x þ 1; y; z;. (viii) x; y 1; z; (ix) x þ 1; y 1; z; (x) x þ 1; y; z þ 1; (xi) x; y; z þ 1

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