Preparation and Properties of 1,2-Bis[(2,4,6-tri-<i>t</i>-butylphenyl)phosphinidene]cyclobuta[<i>l</i>]phenanthrene

Abstract

Abstract Sterically protected 1,2-bis[(2,4,6-tri-t-butylphenyl)phosphinidene]cyclobuta[l]phenanthrene (4) and its group(6) and group(10) transition metal complexes were prepared. X-ray crystallographic analysis of 4 revealed a planar structure of the diphosphinidenecyclobuta[l]phenanthrene moiety.