title: NHC carbene supported half-sandwich hydridosilyl complexes of ruthenium: the impact of supporting ligands on Si∙∙∙H interligand interactions.
abstract: Reaction of complex [CpRu(pyr)3][PF6] (3) with the NHC carbene IPr (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) results in the NHC complex [Cp(IPr)Ru(pyr)2][PF6] (4), which was studied by NMR specroscopy and X-ray diffraction analysis. Reaction of [Cp(IPr)Ru(pyr)2][PF6] (4) with LiAlH4 leads to the trihydride Cp(IPr)RuH3 (5) characterised by spectroscopic methods. Heating compound 5 with hydrosilanes gives the dihydrido silyl derivatives Cp(IPr)RuH2(SiR3) (6). Systematic X-ray diffraction studies suggest that complexes 6 have stronger interligand Si∙∙∙H interactions than the isolobal phosphine complexes Cp(Pr3P)RuH2(SiR3).
authors.affiliation: Department of Chemistry, Brock University, Niagara Region, 1812 Sir Isaac Brock Way, ON L2S 3A1, Canada. gnikonov@brocku.ca.
authors.forename: Van Hung
authors.initials: VH
authors.lastname: Mai
authors.affiliation: N. S. Kurnakov Institute of General and Inorganic Chemistry, 31 Leninskii prospect, Moscow, 119991, Russia.
authors.forename: Lyudmila G
authors.initials: LG
authors.lastname: Kuzmina
authors.affiliation: N. S. Kurnakov Institute of General and Inorganic Chemistry, 31 Leninskii prospect, Moscow, 119991, Russia.
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Churakov
authors.affiliation: X-Ray Core Facility, Faculty of Science, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5.
authors.forename: Ilia
authors.initials: I
authors.lastname: Korobkov
authors.affiliation: Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK.
authors.forename: Judith A K
authors.initials: JA
authors.lastname: Howard
authors.affiliation: Department of Chemistry, Brock University, Niagara Region, 1812 Sir Isaac Brock Way, ON L2S 3A1, Canada. gnikonov@brocku.ca.
authors.forename: Georgii I
authors.initials: GI
authors.lastname: Nikonov