Bis[2,6-bis(1H-benzimidazol-2-yl)pyridine]ruthenium(II) bis(hexafluoridophosphate) diethyl ether trisolvate

IUCrData Pub Date : 2024-03-01 DOI:10.1107/S2414314624002694

Layla M. Althubyani , Brian J. MacLean , Katherine N. Robertson , Manuel A.S. Aquino , M. Bolte (Editor)

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Abstract

The cationic complex of the title salt, [Ru(C₁₉H₁₃N₅)₂](PF₆)₂·3C₄H₁₀O, has the Ru atom in a slightly distorted octahedral environment of two tridentate benzimdazolyl-pyridine ligands and displays extensive π–π and C—H⋯π interactions.

The title compound, [Ru(C₁₉H₁₃N₅)₂](PF₆)₂·3C₄H₁₀O, was obtained from the reaction of Ru(bimpy)Cl₃ [bimpy is 2,6-bis(1H-benzimidazol-2-yl)pyridine] and bimpy in refluxing ethanol followed by recrystallization from diethyl ether/acetonitrile. At 125 K the complex has orthorhombic (Pca2₁) symmetry. It is remarkable that the structure is almost centrosymmetric. However, refinement in space group Pbcn leads to disorder and definitely worse results. It is of interest with respect to potential catalytic reduction of CO₂. The structure displays N—H⋯O, N—H⋯F hydrogen bonding and significant π–π stacking and C—H⋯π stacking interactions.

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双[2,6-双(1H-苯并咪唑-2-基)吡啶]钌(II)双(六氟磷酸盐)二乙醚三异醇酸酯

标题盐[Ru(C19H13N5)2](PF6)2-3C4H10O的阳离子配合物中的Ru原子位于两个三叉苯并咪唑基吡啶配体的略微畸变的八面体环境中，并显示出广泛的π-π和C-H⋯π相互作用。

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