Nuclear magnetic resonance study of the structure of simple molecules adsorbed on metal surfaces: Acetylene on platinum

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.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2011

Author dc:creator

• Wang, Po-Kang

Contributors dc:contributor

• Slichter, C.P.

• Nuclear magnetic resonance (NMR)
• structure of simple molecules
• molecules adsorbed on metal surfaces
• acetylene
• platinum

Statement dc:rights

• 1984 Po-Kang Wang

Language dc:language

en

Identifier

799412

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25338