title: Synthesis and reactivity of molybdenum and tungsten bis(dinitrogen) complexes supported by diphosphine chelates containing pendant amines.
abstract: Molybdenum and tungsten bis(dinitrogen) complexes of the formula M(N(2))(2)(PNP)(2) (M = Mo and W) and W(N(2))(2)(dppe)(PNP), supported by diphosphine ligands containing a pendant amine of the formula (CH(2)PR(2))(2)NR' = P(R)N(R')P(R) (R = Et, Ph; R' = Me, Bn), have been prepared by Mg reduction of metal halides under an N(2) atmosphere. The complexes have been characterized by NMR and IR spectroscopy, X-ray crystallography, and cyclic voltammetry. Reactivity of the target Mo and W bis(dinitrogen) compounds with CO results in the formation of dicarbonyl complexes.
authors.affiliation: Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA.
authors.forename: Charles J
authors.initials: CJ
authors.lastname: Weiss
authors.forename: Amy N
authors.initials: AN
authors.lastname: Groves
authors.forename: Michael T
authors.initials: MT
authors.lastname: Mock
authors.forename: William G
authors.initials: WG
authors.lastname: Dougherty
authors.forename: W Scott
authors.initials: WS
authors.lastname: Kassel
authors.forename: Monte L
authors.initials: ML
authors.lastname: Helm
authors.forename: Daniel L
authors.initials: DL
authors.lastname: DuBois
authors.forename: R Morris
authors.initials: RM
authors.lastname: Bullock