title: Three-coordinate and four-coordinate cobalt hydride complexes that react with dinitrogen.
abstract: We report the formation and N(2) reactivity of novel cobalt hydride complexes supported by bulky beta-diketiminate ligands (L). Addition of KHBEt(3) to LCoCl gives [LCo(mu-H)](2) (1) or K(2)[LCoH](2) (2), depending on the amount of borohydride used. Compound 2 is the first example of a crystallographically characterized hydride complex in which a transition metal is three-coordinate. Both 1 and 2 react with N(2) at room temperature to give dinuclear N(2) complexes with loss of H(2).
authors.affiliation: Department of Chemistry, University of Rochester, Rochester, New York 14618, USA.
authors.forename: Keying
authors.initials: K
authors.lastname: Ding
authors.forename: William W
authors.initials: WW
authors.lastname: Brennessel
authors.forename: Patrick L
authors.initials: PL
authors.lastname: Holland
mesh_terms: D001894:Borohydrides / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006859:Hydrogen; D008024:Ligands; D015394:Molecular Structure; D009584:Nitrogen / Q000737:chemistry*
chemical_list: D001894:Borohydrides; D008024:Ligands; D003035:Cobalt; D006859:Hydrogen; D009584:Nitrogen