M.A., O.K., and the ALS are supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy under contract No. DE-AC02-05CH11231. M.P. and R.B.M. gratefully acknowledge the support of the National Science Foundation under Award CHE-0911225.
Vacuum Ultraviolet Photoionization Studies of PtCH2 and H-Pt-CH3: A Potential Energy Surface for the Pt+CH4 Reaction†
Article first published online: 29 NOV 2012
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 52, Issue 3, pages 888–891, January 14, 2013
How to Cite
Perera, M., Metz, R. B., Kostko, O. and Ahmed, M. (2013), Vacuum Ultraviolet Photoionization Studies of PtCH2 and H-Pt-CH3: A Potential Energy Surface for the Pt+CH4 Reaction . Angew. Chem. Int. Ed., 52: 888–891. doi: 10.1002/anie.201207931
- Issue published online: 11 JAN 2013
- Article first published online: 29 NOV 2012
- Manuscript Received: 2 OCT 2012
- Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy. Grant Number: DE-AC02-05CH11231
- National Science Foundation. Grant Number: CHE-0911225
- C–H activation;
- reaction intermediates
Does Charge Matter? Direct vacuum UV measurement of ionization energies reveals that C–H insertion by Pt to form H-Pt-CH3 is highly exoergic, while production of PtCH2+H2 is slightly endoergic. Experiments and spin-orbit DFT calculations reveal surprisingly similar energetics for dehydrogenation of methane by neutral and cationic platinum. Red lines in the picture indicate experimentally determined energies.