Crystal and molecular structure of 2-phenyl-1-phosphanaphthalene(2-phenylphosphinoline)

Abstract

Crystals of the title compound are orthorhombic, space group Pbca with a= 8·027, b= 45·325, c= 6·277 Å The structure was solved from diffractometer data for 615 planes by Patterson methods, and was refined by least-squares to a final R of 0·090. The phosphanaphthalene group is nearly planar and shows bond-length variations characteristic of a naphthalene system. Two different P–C bond lengths are found [1·707(14) and 1–802(14)Å] and C–P–C is 101·0(7)°. The plane of the phenyl group is inclined at 29° to that of the phosphanaphthalene.