title: Syntheses and structures of terminal arylalumylene complexes.
abstract: Terminal arylalumylene complexes of platinum [Ar-Al-Pt(PCy3 )2 ] (Ar=2,6-[CH(SiMe3 )2 ]2 C6 H3 (Bbp) or 2,6-[CH(SiMe3 )2 ]2 -4-(tBu)C6 H2 (Tbb)) have been synthesized either by the reaction of a dialumene-benzene adduct with [Pt(PCy3 )2 ], or by the reduction of 1,2-dibromodialumanes Ar(Br)Al-Al(Br)Ar in the presence of [Pt(PCy3 )2 ]. X-Ray crystallographic analysis reveals that the AlPt bond lengths of these arylalumylene complexes are shorter than the previously reported shortest AlPt distance. DFT calculations suggest that the AlPt bonds in the arylalumylene complexes have a significantly high electrostatic character.
authors.affiliation: Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan).
authors.forename: Koichi
authors.initials: K
authors.lastname: Nagata
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Agou
authors.forename: Norihiro
authors.initials: N
authors.lastname: Tokitoh
keywords: aluminum; density functional calculations; metal-metal interactions; platinum; structure elucidation