Crystal and molecular structure of the low-spin complex isothiocyanato[NN-bis-(2-diphenylphosphinoethyl)-2-methoxyethylamine-NOPP]-nickel(II) hexafluorophosphate

Abstract

The crystal structure of the low-spin complex isothiocyanato-[NN-bis-(2-diphenylphosphinoethyl)-2-methoxyethylamine-NOPP]-nickel(II) hexafluorophosphate, [Ni(bdma)NCS]PF₆, donor set NOP₂, has been determined from three-dimensional X-ray data collected by photographic methods and refined by least-squares techniques to a final R of 0·086. The compound crystallises in the space group P2₁/c with the following cell dimensions: a= 17·642(10), b= 11·370(10), c= 17·914(5)Å, β= 112° 31′(4′), Z= 4. The structure consists of discrete [Ni(bdma)NCS]⁺ complex cations and PF₆^– anions. The nickel atom shows a distorted square-pyramidal co-ordination with an apical Ni–O distance of 2·480(9)Å.