Synthesis and structures of substituted triphenyl(phenylimino)phosphoranesSynthesis and structures of substituted triphenyl(phenylimino)phosphoranes
Faculty of Sciences. Chemistry
Structural chemistry group
Applied Nuclear Magnetic Resonance
Acta crystallographica: section C: crystal structure communications. - Copenhagen
66(2010):1, p. o50-o54
University of Antwerp
Three substituted triphenyl(phenylimino)phosphoranes, namely (4-cyanophenylimino)triphenylphosphorane, C25H19N2P, (I), (4-nitrophenylimino)triphenylphosphorane, C24H19N2O2P, (II), and (3-nitrophenylimino)triphenylphosphorane, C24H19N2O2P, (III), were synthesized as precursors for the preparation of substituted diphenylcarbodiimides. All three compounds display a supramolecular arrangement in which the substituted benzene rings are organized in an antiparallel fashion. The nitro group on the ring participates in CH...O and O...π interactions, forming intermolecular dimers. Compound (III) shows disorder which involves the rotation of one of the phenyl rings of the triphenylphosphine group.