Nuclear Magnetic Resonance Study of the Structure of Simple Molecules Adsorbed on Metal Surfaces: Acetylene on Platinum (Slow Beat, Double Resonance, Multi Quantum)
Wang, Po-Kang
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Permalink
https://hdl.handle.net/2142/77370
Description
Title
Nuclear Magnetic Resonance Study of the Structure of Simple Molecules Adsorbed on Metal Surfaces: Acetylene on Platinum (Slow Beat, Double Resonance, Multi Quantum)
Author(s)
Wang, Po-Kang
Issue Date
1984
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Date of Ingest
2015-05-13T15:41:43Z
Keyword(s)
Physics, Nuclear
Language
eng
Abstract
We have used NMR to determine the structure of acetylene (HC(TBOND)CH) adsorbed at room temperature on small platinum particles by studying the ('13)C-('13)C, ('13)C-('1)H, and ('1)H-('1)H dipolar interactions among the nuclei in the adsorbed molecules. We find a model of 77% CCH(,2) and 23% HCCH to be the only one consistent with all of our data. The C-C bond length of the majority species, CCH(,2), is determined as 1.44 (+OR-) 0.02 (ANGSTROM), midway between a single and double bond, suggesting that both carbon atoms bond to the surface.
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