title: Iridium(iii) hydrido complexes for the catalytic dehydrogenation of hydrazine borane.
abstract: The synthesis of 3,5-disubstituted cyclometalated iridium(iii) hydrido complexes of the type [3,5-R2(POCOP)IrHX] (3,5-R2(POCOP) = κ3-C5HR2-2,6-(OPtBu2)2with R = t-Bu, COOMe; X = Cl, H) is described. All complexes were investigated in the catalytic dehydrogenation of hydrazine borane and compared with the unsubstituted compounds [(POCOP)IrHX] (X = Cl, H). All catalysts are highly active and recyclable, clearly maintaining hydrogen production activity. The dehydrogenation products were structurally characterised by solid state NMR and FTIR spectroscopy. Experimental observations were complemented by a dispersion-corrected DFT study to rationalise the mechanism of hydrazine borane dehydrogenation.
authors.affiliation: Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Str. 29a, 18059 Rostock, Germany. torsten.beweries@catalysis.de.
authors.forename: D
authors.initials: D
authors.lastname: Han
authors.forename: M
authors.initials: M
authors.lastname: Joksch
authors.forename: M
authors.initials: M
authors.lastname: Klahn
authors.forename: A
authors.initials: A
authors.lastname: Spannenberg
authors.forename: H-J
authors.initials: HJ
authors.lastname: Drexler
authors.forename: W
authors.initials: W
authors.lastname: Baumann
authors.forename: H
authors.initials: H
authors.lastname: Jiao
authors.forename: R
authors.initials: R
authors.lastname: Knitsch
authors.forename: M R
authors.initials: MR
authors.lastname: Hansen
authors.forename: H
authors.initials: H
authors.lastname: Eckert
authors.forename: T
authors.initials: T
authors.lastname: Beweries