Crystal and molecular structure of hydroxodinitrosylbis(triphenylphosphine)osmium(II) hexafluorophosphate

Abstract

The crystal and molecular structure of the title compound has been determined from three-dimensional X-ray data collected by counter methods. Crystals are monoclinic, space group P2₁/c, with Z= 4 in a unit cell of dimensions a= 18·433(2), b= 10·654(1), c= 18·952(4)Å and β= 91·80(2)°. Block-diagonal least-squares refinement has led to a final R of 0·057 for 3646 observed reflections. The geometry about the metal is that of a tetragonal pyramid with two trans-phosphorus atoms, a hydroxo and a linear nitrosyl group forming the basal plane: the apical position is occupied by a bent nitrosyl group.