(η6-Benzene)chlorido[2-(pyridin-2-yl)quinoline-κ2N,N′]ruthenium(II) tetrafluoridoborate

IUCrData Pub Date : 2025-01-01 DOI:10.1107/S2414314624012409

Manikandan Varadhan , Ibanpynhunlang Passi , Thangaraja Chinnathangavel , Venugopal Rajendiran

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Abstract

The coordination environment around Ru^II is best described as pseudo-octahedral, resembling the familiar half-sandwich ‘three-legged piano-stool’ structure.

The title compound, [RuCl(C₆H₆)(C₁₄H₁₀N₂)]BF₄ or [Ru(η⁶-benzene)(L)Cl]⁺BF₄⁻ [where L denotes the 2-(pyridin-2-yl)quinoline ligand], crystallizes in the monoclinic space group P2₁/c. The coordination environment around Ru^II is best described as pseudo-octahedral, resembling the familiar half-sandwich ‘three-legged piano-stool’ shape. In the coordination sphere, the η⁶-binding benzene ligand coordinates with the central Ru^II atom occupying the ‘seat’ of the stool with a metal-to-centroid distance of 1.695 (17) Å, while the chelate ligand L coordinates with its N atoms and, together with the Cl ligand, defines the ‘legs’ of the stool. Apart from Coulombic forces, C—H⋯F and C—H⋯Cl hydrogen-bonding interactions consolidate the crystal packing.

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