Preparation and nuclear magnetic resonance spectra of aminodifluorophosphorane

Abstract

Aminodifluorophosphorane has been prepared by the reaction in solution of difluorophosphine and ammonia. N.m.r. spectra indicate that the fluorine atoms are in axial positions and that the amino-group atoms lie in a plane perpendicular to the equatorial plane. At 215 K there is no evidence for rotation about the P–N bond or for fluxional behaviour. The compound is thermally unstable, and has not been isolated.