title: Multiple coupling of silanes with imido complexes of Mo.
abstract: The bis(imido) complexes ((t)BuN[double bond, length as m-dash])2Mo(PMe3)(L) (L = PMe3, C2H4) react with up to three equivalents of silane PhSiH3 to give the imido-bridged disilyl silyl Mo(vi) complex ((t)BuN){μ-(t)BuN(SiHPh)2}Mo(H)(SiH2Ph)(PMe3)2 (3) studied by NMR, IR and X-ray diffraction. NMR data supported by DFT calculations show that complex 3 is an unusual example of a silyl hydride of Mo(VI), without significant SiH interaction. Mechanistic NMR studies revealed that silane addition proceeds in a stepwise manner via a series of Si-H∙∙∙M agostic and silanimine complexes whose structures were further elucidated by DFT calculations.
authors.affiliation: Chemistry Department, Brock University, 500 Glenridge Ave., St. Catharines, ON L2S 3A1, Canada. gnikonov@brocku.ca.
authors.forename: Andrey Y
authors.initials: AY
authors.lastname: Khalimon
authors.forename: Nicolas A
authors.initials: NA
authors.lastname: McLeod
authors.forename: Stanislav K
authors.initials: SK
authors.lastname: Ignatov
authors.forename: Andrey I
authors.initials: AI
authors.lastname: Okhapkin
authors.forename: Lyudmila G
authors.initials: LG
authors.lastname: Kuzmina
authors.forename: Judith A K
authors.initials: JA
authors.lastname: Howard
authors.forename: Georgii I
authors.initials: GI
authors.lastname: Nikonov