A hexaphosphorus chain as part of a dimeric P,P′-containing ligand; 1,3-phosphozirconation of white phosphorus; X-ray structure of [Zr(η-C5H5)2{P(PR2)PP(PR2)P}](R = SiMe3)

Abstract

A three-fragment oxidative addition of [ZrCp₂(PR₂)₂] to P₄, in toluene at 25 °C, yields the zircona(tetraphospha)bicyclo[2.1.0]pentane [[graphic omitted]](CP =η-C₅H₅, R = SiMe₃)(1), which shows a first order ³¹P{¹H} n.m.r. spectrum at 145.8 MHz; the X-ray structure of the crystalline complex (1) reveals it to have retained one of the triangular faces [P(2)P(3)P(4)] of P₄, with Zr–P(1) 2.632(3) and Zr–P(2) 2.607(4)Å.