Nuclear magnetic resonance study of the structure of simple molecules adsorbed on metal surfaces: Acetylene on platinum
Wang, Po-Kang
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https://hdl.handle.net/2142/25338
Description
Title
Nuclear magnetic resonance study of the structure of simple molecules adsorbed on metal surfaces: Acetylene on platinum
Author(s)
Wang, Po-Kang
Issue Date
1984
Doctoral Committee Chair(s)
Slichter, C.P.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Nuclear magnetic resonance (NMR)
structure of simple molecules
molecules adsorbed on metal surfaces
acetylene
platinum
Language
en
Abstract
We have used NMR to determine the structure of acetylene (HC~CH) adsorbed at room temperature on small platinum particles by studying the l3c_13c, l3C_1H, and lH_1H dipolar interactions among the nuclei in the
adsorbed molecules. We find a model of 77% CCH2 and 23% HCCH to be the only one consistent with all of our data. The C-C bond length of the majority species, CCH2, is determined as 1.44 ± 0.02 A, midway between a single and double bond, suggesting that both carbon atoms bond to the surface.
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