title: Bis- and tris(pyrazolyl)borate/methane-stabilized P(III) -centered cations.
abstract: We report the synthesis of [H2 B(pz)2 PR](+) , [H2 C(pz)2 PR](+2) , [HB(pz)3 P](+2) , and [HC(pz)3 P](+3) (H2 B(pz)2 =bis(pyrazolyl)borate; H2 C(pz)2 =bis(pyrazolyl)methane; HB(pz)3 =tris(pyrazolyl)borate; HC(pz)3 =tris(pyrazolyl) methane; R=Ph, Cy or Et2 N) by reaction of the corresponding neutral or anionic ligands with chlorophosphines in the presence of TMSOTf. The structures of these compounds were determined by X-ray crystallographic analysis and the nature of their bonding was examined using density functional theory.
authors.affiliation: Max-Planck-Institut für Kohlenforschung, Kaiser Wilhelm Platz 1, 45470 Mülheim an der Ruhr (Germany), Fax: (+49) 208-306-2994.
authors.forename: Lianghu
authors.initials: L
authors.lastname: Gu
authors.forename: Gopinadhanpillai
authors.initials: G
authors.lastname: Gopakumar
authors.forename: Pauline
authors.initials: P
authors.lastname: Gualco
authors.forename: Walter
authors.initials: W
authors.lastname: Thiel
authors.forename: Manuel
authors.initials: M
authors.lastname: Alcarazo
keywords: DFT; base stabilization; cationic phosphines; coordination complexes; p-block chemistry