title: Dative Au→Al interactions: crystallographic characterization and computational analysis.
abstract: Hitherto unknown Au→Al interactions have been evidenced upon coordination of the geminal phosphorus-aluminum Lewis pair Mes2 PC(=CHPh)AltBu2 (Mes=2,4,6-trimethylphenyl). Four different gold(I) complexes featuring alkyl (Me), aryl (Ph, C6F5), and alkynyl (C≡CPh) co-ligands have been prepared. X-ray diffraction analyses show that P→Au→Al bridging coordination induces noticeable bending of the ligand (the PCAl bond angle shrinks by 13°). This new type of transition metal→Lewis acid interaction has been analyzed by DFT calculations.
authors.affiliation: Université de Toulouse, UPS, LHFA, 118 route de Narbonne, 31062 Toulouse (France); CNRS, LHFA, UMR 5069, 31062 Toulouse (France).
authors.forename: Marc
authors.initials: M
authors.lastname: Devillard
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Nicolas
authors.forename: Andreas W
authors.initials: AW
authors.lastname: Ehlers
authors.forename: Jana
authors.initials: J
authors.lastname: Backs
authors.forename: Sonia
authors.initials: S
authors.lastname: Mallet-Ladeira
authors.forename: Ghenwa
authors.initials: G
authors.lastname: Bouhadir
authors.forename: J Chris
authors.initials: JC
authors.lastname: Slootweg
authors.forename: Werner
authors.initials: W
authors.lastname: Uhl
authors.forename: Didier
authors.initials: D
authors.lastname: Bourissou
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry; D018360:Crystallography, X-Ray; D006046:Gold / Q000737:chemistry*; D058116:Lewis Acids / Q000737:chemistry; D008968:Molecular Conformation; D010758:Phosphorus / Q000737:chemistry; D028561:Transition Elements / Q000737:chemistry
chemical_list: D056831:Coordination Complexes; D058116:Lewis Acids; D028561:Transition Elements; D010758:Phosphorus; D006046:Gold; D000535:Aluminum
keywords: X-ray diffraction; aluminum; coordination chemistry; density functional calculations; gold; phosphorus