title: Molybdenum(0) Dinitrogen Complexes Supported by Pentadentate Tetrapodal Phosphine Ligands: Structure, Synthesis, and Reactivity toward Acids.
abstract: The syntheses of two pentadentate tetrapodal phosphine (pentaPod(P)) ligands, P2(Ph)PP2(Ph) and P2(Me)PP2(Ph), are reported, which derive from the fusion of a tripod and a trident ligand. Reaction of the ligand P2(Ph)PP2(Ph) with [MoCl3(THF)3] followed by an amalgam reduction under N2 does not lead to well-defined products. The same reactions performed with the ligand P2(Me)PP2(Ph) afford the mononuclear molybdenum dinitrogen complex [MoN2(P2(Me)PP2(Ph))]. Because of the unprecedented topology of the pentaphosphine ligand, the Mo-P bond to the phosphine in the trans position to N2 is significantly shortened, explaining the very strong activation of the dinitrogen ligand (ν̃NN = 1929 cm(-1)). The reactivity of this complex toward acids is investigated.
authors.affiliation: Christian-Albrechts-Universität Kiel , Institute of Inorganic Chemistry, Max-Eyth-Straße 2, D-24118 Kiel, Germany.
authors.forename: Svea
authors.initials: S
authors.lastname: Hinrichsen
authors.affiliation: Christian-Albrechts-Universität Kiel , Institute of Inorganic Chemistry, Max-Eyth-Straße 2, D-24118 Kiel, Germany.
authors.forename: Andrei
authors.initials: A
authors.lastname: Kindjajev
authors.affiliation: Leibniz-Institut für Katalyse , Albert-Einstein-Straße 29a, D-18059 Rostock, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Adomeit
authors.affiliation: Christian-Albrechts-Universität Kiel , Institute of Inorganic Chemistry, Max-Eyth-Straße 2, D-24118 Kiel, Germany.
authors.forename: Jan
authors.initials: J
authors.lastname: Krahmer
authors.affiliation: Christian-Albrechts-Universität Kiel , Institute of Inorganic Chemistry, Max-Eyth-Straße 2, D-24118 Kiel, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Näther
authors.affiliation: Christian-Albrechts-Universität Kiel , Institute of Inorganic Chemistry, Max-Eyth-Straße 2, D-24118 Kiel, Germany.
authors.forename: Felix
authors.initials: F
authors.lastname: Tuczek