(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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（η - 6-苯）-氯化-[2-（吡啶-2-基）喹啉-κ2 N，N']钌（II）四氟硼酸盐。

标题化合物[RuCl(C6H6)(C14H10N2)]BF4或[Ru（η - 6-苯）(L)Cl]+BF4 - [L表示2-（吡啶-2-基）喹啉配体]在单斜空间群P21/c中结晶。RuII周围的协调环境最好描述为伪八面体，类似于熟悉的半三明治“三腿钢琴凳”形状。在配位球中，η - 6结合苯配体的中心RuII原子与金属到质心的距离为1.695 （17）Å，占据了凳子的“座位”，而螯合配体L与N原子配位，与Cl配体一起定义了凳子的“腿”。除了库仑力外，C-H⋯F和C-H⋯Cl氢键相互作用巩固了晶体堆积。

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