title: Reductive Dehydrogenation of a Stannane via Multiple Sn-H Activation by Frustrated Lewis Pairs.
abstract: A bulky substituted stannane Ar*SnH3(Ar*=2,6-(2',4',6'-triisopropylphenyl)phenyl) was treated with the well-known frustrated Lewis pair (FLP) PtBu3/B(C6F5)3in varying stoichiometries. To some degree, hydride abstraction and adduct formation is observed, leading to [Ar*SnH2(PtBu3)]+which is rather unreactive toward further dehydrogenation. In a competing process, the FLP proved to be capable of completely striping-off hydrogen and hydrides to generate the first cationic phosphonio-stannylene [Ar*Sn(PtBu3)]+. This behavior provides insight into the activation/abstraction mechanism processes involved in these Group 14 hydride derivatives.
authors.affiliation: Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.|Present address: Department of Chemistry, University of Oxford, 12 Mansfield Road, OX13TA, Oxford, UK.
authors.forename: Christian P
authors.initials: CP
authors.lastname: Sindlinger
authors.affiliation: Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
authors.forename: Frederik S W
authors.initials: FS
authors.lastname: Aicher
authors.affiliation: Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
authors.forename: Hartmut
authors.initials: H
authors.lastname: Schubert
authors.affiliation: Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
authors.forename: Lars
authors.identifier: 0000-0003-4701-4410
authors.initials: L
authors.lastname: Wesemann
keywords: E−H activation; cations; dehydrogenation; frustrated Lewis pair; stannylenes