title: [(Triphos)Ni(eta2-BH4)]: an unusual nickel(I) borohydride complex.
abstract: Reduction of [(triphos)NiCl2] (1) with an excess of NaBH4 in THF produces the paramagnetic Ni(I) complex [(triphos)Ni(eta2-BH4)] (2). X-ray crystallography shows 1 to be a square-planar Ni(II) species in which the phosphine ligand is bidentate, whereas 2 has pseudotetrahedral geometry at the Ni(I) center, with a tridentate phosphine and the borohydride ligand occupying a single coordination site. Density functional theory calculations show the unpaired electron in 2 to reside in an orbital located mainly on the Ni atom.
authors.affiliation: Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, Canada E3B 6E2.
authors.forename: Mathivathani
authors.initials: M
authors.lastname: Kandiah
authors.forename: G Sean
authors.initials: GS
authors.lastname: McGrady
authors.forename: Andreas
authors.initials: A
authors.lastname: Decken
authors.forename: Peter
authors.initials: P
authors.lastname: Sirsch
mesh_terms: D001894:Borohydrides / Q000138:chemical synthesis / Q000737:chemistry*; D015392:Chemistry, Inorganic / Q000379:methods*; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*
chemical_list: D001894:Borohydrides; D009532:Nickel