Abstract
The title complex, {[Co2(C9H4N2O4)2(H2O)4]·3H2O}n, was synthesized hydrothermally. The unique CoII ion is coordinated in a distorted octahedral coordination environment by two water molecules and three symmetry-related 1H-benzimidazole-5,6-dicarboxylate (Hbidc) ligands. The Hbidc ligands coordinate via a bis-chelating and mono-chelating carboxylate group and by an imidazole group N atom, bridging the CoII ions and forming an extended two-dimensional structure in the ab plane. In the crystal structure, intermolecular N—H⋯O and O—H⋯O hydrogen bonds connect complex and solvent water molecules, forming a three-dimensional supermolecular network. One of the solvent water molecules lies on a twofold rotation axis.
Highlights
Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People’s
The unique CoII ion is coordinated in a distorted octahedral coordination environment by two water molecules and three symmetry-related 1Hbenzimidazole-5,6-dicarboxylate (Hbidc) ligands
The Hbidc ligands coordinate via a bis-chelating and mono-chelating carboxylate group and by an imidazole group N atom, bridging the CoII ions and forming an extended twodimensional structure in the ab plane
Summary
R factor = 0.029; wR factor = 0.087; data-to-parameter ratio = 15.3. The title complex, {[Co2(C9H4N2O4)2(H2O)4]3H2O}n, was synthesized hydrothermally. The unique CoII ion is coordinated in a distorted octahedral coordination environment by two water molecules and three symmetry-related 1Hbenzimidazole-5,6-dicarboxylate (Hbidc) ligands. The Hbidc ligands coordinate via a bis-chelating and mono-chelating carboxylate group and by an imidazole group N atom, bridging the CoII ions and forming an extended twodimensional structure in the ab plane. Intermolecular N—H O and O—H O hydrogen bonds connect complex and solvent water molecules, forming a three-dimensional supermolecular network. One of the solvent water molecules lies on a twofold rotation axis
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