Iridium-Catalyzed Dehydrogenation of Substituted Amine Boranes: Kinetics, Thermodynamics, and Implications for Hydrogen Storage

Dehydrogenation of amine boranes is catalyzed efficiently by the iridium pincer complex (κ3-1,3-(OP t Bu2)2C6H3)Ir(H)2 (1). With CH3NH2BH3 (MeAB) and with AB/MeAB mixtures (AB = NH3BH3), the rapid release of 1 equiv of H2 is observed to yield soluble oligomeric products at rates similar to those pre...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2008-10, Vol.47 (19), p.8583-8585
Main Authors: Dietrich, Brandon L, Goldberg, Karen I, Heinekey, D. Michael, Autrey, Tom, Linehan, John C
Format: Article
Language:English
Subjects:
08 HYDROGEN
AMINES
AMMONIA
BORANES
CALORIMETRY
DEHYDROGENATION
ENTHALPY
HYDROGEN STORAGE
IRIDIUM
KINETICS
MIXTURES
THERMODYNAMICS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dehydrogenation of amine boranes is catalyzed efficiently by the iridium pincer complex (κ3-1,3-(OP t Bu2)2C6H3)Ir(H)2 (1). With CH3NH2BH3 (MeAB) and with AB/MeAB mixtures (AB = NH3BH3), the rapid release of 1 equiv of H2 is observed to yield soluble oligomeric products at rates similar to those previously reported for the dehydrogenation of AB catalyzed by 1. ΔH 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.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic801161g