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  • Title: [2-(2-Pyridyl)-1H-benzimidazole-kappa2N2,N3]bis(p-toluato-kappa2O,O')manganese(II).
    Author: Ma CB, Chen CN, Liu QT.
    Journal: Acta Crystallogr C; 2007 Dec; 63(Pt 12):m618-21. PubMed ID: 18057611.
    Abstract:
    In the title compound, [Mn(C8H7O2)2(C12H9N3)], the manganese(II) centre is surrounded by three bidentate chelating ligands, namely, one 2-(2-pyridyl)benzimidazole ligand [Mn-N = 2.1954 (13) and 2.2595 (14) A] and two p-toluate ligands [Mn-O = 2.1559 (13)-2.2748 (14) A]. It displays a severely distorted octahedral geometry, with cis angles ranging from 58.87 (4) to 106.49 (5) degrees. Intermolecular C-H...O hydrogen bonds between the p-toluate ligands link the molecules into infinite chains, and every two neighbouring chains are further coupled by N-H...O and C-H...O hydrogen bonds between the 2-(2-pyridyl)benzimidazole and p-toluate ligands, leading to an infinite ribbon-like double-chain packing mode. The complete solid-state structure can be described as a three-dimensional supramolecular framework, stabilized by these intermolecular hydrogen-bonding interactions and possible C-H...pi interactions, as well as stacking interactions involving the 2-(2-pyridyl)benzimidazole ligands.
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