Lewis, B. F. and Bowser, W. M. and Horn, J. L., Jr. and Luu, T. and Weinberg, W. H. (1974) Inelastic electron tunneling spectroscopy of phenol and hydroquinone chemisorbed on alumina. Journal of Vacuum Science and Technology, 11 (1). pp. 262-265. ISSN 0022-5355 http://resolver.caltech.edu/CaltechAUTHORS:20120810-153956599
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Inelastic electron tunneling spectroscopy has been used to probe the irreversible chemisorption of C_6H_5OH and 1,4-C_6H_4(OH)_2 on a thin amorphous film of Al_2O_3. This spectroscopy yields a representation of the vibronic excitations of the chemical bonds in the adspecies, i.e., the tunneling spectra are analogous to ir spectra. The C_6H_5OH is found to adsorb predominately as C_6H_5O^− with a small amount of adsorption as C_6H_5OH. The 1,4-C_6H_4(OH)_2 is found to adsorb predominately as C_6H_4(OH)O^− and perhaps to a smaller extent as C_6H_4O^(2-)_2. Extensive hydrogen bonding is observed among adsorbates and between adsorbates and the hydroxylated alumina surface.
|Additional Information:||© 1974 American Vacuum Society. Received 13 August 1973. The support of this research by the President's Fund of the California Institute of Technology (Grant No. PF-047) is gratefully acknowledged. We have benefited from the facilities of the Jet Propulsion Laboratory of the California Institute of Technology. JLH and TL wish to thank the Esso Corporation for partial support as participants in the undergraduate research program in the Division of Chemistry and Chemical Engineering at the California Institute of Technology.|
|Classification Code:||PACS: 68.43.-h; 73.20.Hb; 73.40.Gk|
|Official Citation:||Inelastic electron tunneling spectroscopy of phenol and hydroquinone chemisorbed on alumina B. F. Lewis, W. M. Bowser, J. L. Horn, Jr., T. Luu, and W. H. Weinberg, J. Vac. Sci. Technol. 11, 262 (1974), DOI:10.1116/1.1318587|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Aucoeur Ngo|
|Deposited On:||13 Aug 2012 16:45|
|Last Modified:||26 Dec 2012 15:57|
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