title: Ruthenium hydride complexes of the hindered phosphine ligand tris(3-diisopropylphosphinopropyl)phosphine.
abstract: The synthesis and characterization of the novel hindered tripodal phosphine ligand P(CH(2)CH(2)CH(2)P(i)Pr(2))(3) (P(3)P(3)(iPr)) (1) are reported, along with the synthesis and characterization of ruthenium chloro and hydrido complexes of 1. Complexes [RuCl(P(3)P(3)(i)Pr)][BPh(4)] (2[BPh(4)]), RuH(2)(P(3)P(3)(i)Pr) (3), and [Ru(H(2))(H)(P(3)P(3)(iPr))][BPh(4)] (4[BPh(4)]) were characterized by crystallography. Complex 2 is fluxional in solution, and low-temperature NMR spectroscopy of the complex correlates well with two dynamic processes, an exchange between stereoisomers and a faster turnstile-type exchange within one of the stereoisomers.
authors.affiliation: Mark Wainwright Analytical Centre, The University of New South Wales, NSW 2052, Australia.
authors.forename: Mohan M
authors.initials: MM
authors.lastname: Bhadbhade
authors.forename: Leslie D
authors.initials: LD
authors.lastname: Field
authors.forename: Ryan
authors.initials: R
authors.lastname: Gilbert-Wilson
authors.forename: Ruth W
authors.initials: RW
authors.lastname: Guest
authors.forename: Paul
authors.initials: P
authors.lastname: Jensen
mesh_terms: D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*; D013237:Stereoisomerism; D014867:Water / Q000737:chemistry*
chemical_list: D008024:Ligands; D009942:Organometallic Compounds; D009943:Organophosphorus Compounds; C561537:tris(3-diisopropylphosphinopropyl)phosphine; D014867:Water; D012428:Ruthenium