Crystal structure of bromidonitrosylbis(triphenylphosphane-κP)nickel(II)

Abstract

The asymmetric unit of the title complex, [NiBr(NO){P(C6H5)3}2], comprises two independent mol­ecules each with a similar configuration. The NiII cation is coordinated by one bromide anion, one nitrosyl anion and two tri­phenyl­phosphane mol­ecules in a distorted BrNP2 tetra­hedral coordination geometry. The coordination of the nitrosyl group is non-linear, the Ni—N—O angles being 150.2 (5) and 151.2 (5)° in the two independent mol­ecules. In the crystal, mol­ecules are linked by weak C—H⋯Br hydrogen bonds and weak C—H⋯π inter­actions into a three-dimensional supra­molecular architecture.

Distorted tetrahedral nickel-nitrosyl complexes: spectroscopic characterization and electronic structure

“…While this work was underway, the structure of [Ni(NO) (Br)(PPh 3 ) 2 ] was reported in 2015 [47]. However, this is only a structural report without any detailed spectroscopic characterization, and the temperature (100 K) used for the structural determination is different from that used for our crystal structure of [Ni(NO)(Br)(PPh 3 ) 2 ] (196 K).…”