Substitutional disorder in the substituted nixantphos ligand C 39H32Br0.27Cl0.73NOP2

Abstract

The structure of 10-(3-bromo/chloro-prop-yl)-4,6-bis-(diphenyl-phosphino)- 10H-phenoxazine, C39H32Br0.27Cl0.73NOP2, shows chloro/bromo substitutional disorder in a 3:1 ratio. For application as a ligand in catalysis, the intra-molecular P⋯P distance of 4.263 (2) Å is relevant. The phenoxazine ring system is essentially planar. © 2008.