title: Iridium-catalyzed dehydrogenation of substituted amine boranes: kinetics, thermodynamics, and implications for hydrogen storage.
abstract: Dehydrogenation of amine boranes is catalyzed efficiently by the iridium pincer complex (kappa (3)-1,3-(OP ( t )Bu 2) 2C 6H 3)Ir(H) 2 ( 1). With CH 3NH 2BH 3 (MeAB) and with AB/MeAB mixtures (AB = NH 3BH 3), the rapid release of 1 equiv of H 2 is observed to yield soluble oligomeric products at rates similar to those previously reported for the dehydrogenation of AB catalyzed by 1. Delta H for the dehydrogenation of AB, MeAB, and AB/MeAB mixtures has been determined by calorimetry. The experimental heats of reaction are compared to results from computational studies.
authors.affiliation: Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, USA.
authors.forename: Brandon L
authors.initials: BL
authors.lastname: Dietrich
authors.forename: Karen I
authors.initials: KI
authors.lastname: Goldberg
authors.forename: D Michael
authors.initials: DM
authors.lastname: Heinekey
authors.forename: Tom
authors.initials: T
authors.lastname: Autrey
authors.forename: John C
authors.initials: JC
authors.lastname: Linehan