title: C-H activation of 2,4,6-triphenylphosphinine: unprecedented formation of cyclometalated [(P^C)Ir(III)] and [(P^C)Rh(III)] complexes.
abstract: An unprecedented C-H activation of 2,4,6-triphenylphosphinine by Ir(III) and Rh(III) has been observed. Time-dependent (31)P{(1)H} NMR spectroscopy gave insight into the cyclometalation reaction and the corresponding coordination compounds were characterized by means of X-ray crystallography. In contrast, 2,4,6-triphenylpyridine does not show any ortho-metalation, demonstrating a remarkable difference in reactivity between these two structurally related aromatic heterocycles.
authors.affiliation: Department of Chemical Engineering and Chemistry, Laboratory of Homogeneous Catalysis and Coordination Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
authors.forename: Leen E E
authors.initials: LE
authors.lastname: Broeckx
authors.forename: Martin
authors.initials: M
authors.lastname: Lutz
authors.forename: Dieter
authors.initials: D
authors.lastname: Vogt
authors.forename: Christian
authors.initials: C
authors.lastname: Müller
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007495:Iridium / Q000737:chemistry*; D008958:Models, Molecular; D009943:Organophosphorus Compounds / Q000737:chemistry*; D012238:Rhodium / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D056831:Coordination Complexes; D009943:Organophosphorus Compounds; C519090:phosphinine; D007495:Iridium; D012238:Rhodium