title: Catching the first oligomerization event in the catalytic formation of polyaminoboranes: H3B·NMeHBH2·NMeH2 bound to iridium.
abstract: We report the first insertion step at a metal center for the catalytic dehydropolymerization of H(3)B·NMeH(2) to form the simplest oligomeric species, H(3)B·NMeHBH(2)·NMeH(2), by the addition of 1 equiv of H(3)B·NMeH(2) to [Ir(PCy(3))(2)(H)(2)(η(2)-H(3)B·NMeH(2))][BAr(F)(4)] to give [Ir(PCy(3))(2)(H)(2)(η(2)-H(3)B·NMeHBH(2)·NMeH(2))][BAr(F)(4)]. This reaction is also catalytic for the formation of the free linear diborazane, but this is best obtained by an alternative stoichiometric synthesis.
authors.affiliation: Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3QR, UK.
authors.forename: Heather C
authors.initials: HC
authors.lastname: Johnson
authors.forename: Alasdair P M
authors.initials: AP
authors.lastname: Robertson
authors.forename: Adrian B
authors.initials: AB
authors.lastname: Chaplin
authors.forename: Laura J
authors.initials: LJ
authors.lastname: Sewell
authors.forename: Amber L
authors.initials: AL
authors.lastname: Thompson
authors.forename: Mairi F
authors.initials: MF
authors.lastname: Haddow
authors.forename: Ian
authors.initials: I
authors.lastname: Manners
authors.forename: Andrew S
authors.initials: AS
authors.lastname: Weller