Dehydrogenation of N-ethyl perhydrocarbazole catalyzed by PCP pincer iridium complexes: Evaluation of a homogenous hydrogen storage system

Zhaohui Wang, Ian Tonks, Jack Belli, Craig M. Jensen

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

The iridium complexes IrH2{C6H3-2,6-(CH2PBut2)2 (1), IrH2{C6H3-2,6-(CH2PPri2)2 (2), and IrHCl{C6H3-2,6-(OPBut2)2 (3) have been found to be highly active catalysts for the dehydrogenation of N-ethyl perhydrocarbazole at 200 °C. However, dehydrogenation to the fully unsaturated ethyl carbazole does not occur in most instances. Complex 3 is the most active catalyst and shows reasonable activity even at 150 °C. No signs of dehydrogenation were found in experiments conducted at 100 °C. This apparently reflects the thermodynamic constraints imposed by the high enthalpy of dehydrogenation of the substrate.

Original languageEnglish (US)
Pages (from-to)2854-2857
Number of pages4
JournalJournal of Organometallic Chemistry
Volume694
Issue number17
DOIs
StatePublished - Aug 1 2009
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by General Motors Corporation.

Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.

Keywords

  • Catalytic dehydrogenation
  • Hydrogen storage
  • Iridium complexes
  • PCP pincer complex
  • Perhydrocarbazole

Fingerprint

Dive into the research topics of 'Dehydrogenation of N-ethyl perhydrocarbazole catalyzed by PCP pincer iridium complexes: Evaluation of a homogenous hydrogen storage system'. Together they form a unique fingerprint.

Cite this