Abstract
The title compound, [Au2(C27H26P2)2][NiCl4]·C4H10O, consists of a digold(I) complex cation, an [NiCl4]2− complex anion and a diethyl ether solvent molecule. Two 1,3-bis(diphenylphosphanyl)propane (dppp) ligands bridge two AuI atoms, forming a metallacycle in which each of the AuI atoms is coordinated in a slightly distorted linear environment by two P atoms. In the complex anion, the NiII atom is coordinated by four chloride ligands in a distorted tetrahedral geometry. The complex cation and the complex anion form a cation–anion pair through two Au⋯Cl contacts of 3.040 (1) and 3.021 (2) Å. One of the phenyl groups of the dppp ligand is disordered over two positions with equal occupancies.
Highlights
The title compound, [Au2(C27H26P2)2][NiCl4]C4H10O, consists of a digold(I) complex cation, an [NiCl4]2 complex anion and a diethyl ether solvent molecule
The NiII atom is coordinated by four chloride ligands in a distorted tetrahedral geometry
In the course of this study, we found the formation of a diphosphine-bridged digold(I) complex, [Au2(dppp)2]2+ (dppp = 1,3-bis(diphenylphosphanyl)propane), which is cocrystallized with [NiCl4]2– to give single-crystals of [Au2(dppp)2][NiCl4].Et2O
Summary
Two 1,3-bis(diphenylphosphanyl)propane (dppp) ligands bridge two AuI atoms, forming a metallacycle in which each of the AuI atoms is coordinated in a slightly distorted linear environment by two P atoms. The NiII atom is coordinated by four chloride ligands in a distorted tetrahedral geometry. The complex cation and the complex anion form a cation–anion pair through two Au Cl contacts of 3.040 (1) and. One of the phenyl groups of the dppp ligand is disordered over two positions with equal occupancies. See: Gruber & Jansen (2010); Brandys & Puddephatt (2001). See: Igashira-Kamiyama et al (2012); Lee et al (2012); Lim et al.
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