title: Selective dimerization of Lewis-acid/base-stabilized phosphanylalanes.
abstract: The reaction of [{(CO)(5)W}PRH(2)] (R = H, Ph) with H(3)Al⋅NR(3) (R = Et, Me) leads to the formation of four-membered heterocyclic compounds [({(CO)(5)W}P(H)AlH⋅NEt(3))(2)] and [({(CO)(5)W}PhPAlH⋅NMe(3))(2)]. Upon dissolving the solid compounds, fast equilibria between the isomers are observed on the NMR timescale. Further insight into the stability and reactivity of the isomers was gained by applying theoretical methods. DFT calculations predict that hydrogen elimination in the case of [({(CO)(5)W}PhPAlH⋅NMe(3))(2)] may be reversible.
authors.affiliation: Institut für Anorganische Chemie, Universität Regensburg, 93040 Regensburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Bodensteiner
authors.forename: Alexey Y
authors.initials: AY
authors.lastname: Timoshkin
authors.forename: Eugenia V
authors.initials: EV
authors.lastname: Peresypkina
authors.forename: Ulf
authors.initials: U
authors.lastname: Vogel
authors.forename: Manfred
authors.initials: M
authors.lastname: Scheer
mesh_terms: D018360:Crystallography, X-Ray; D019281:Dimerization; D006571:Heterocyclic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D058116:Lewis Acids / Q000737:chemistry*; D058115:Lewis Bases / Q000737:chemistry*; D008958:Models, Molecular; D009943:Organophosphorus Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011789:Quantum Theory
chemical_list: D006571:Heterocyclic Compounds; D058116:Lewis Acids; D058115:Lewis Bases; D009943:Organophosphorus Compounds