| Autor: |
Cimatu K; Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA., Baldelli S |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of the American Chemical Society [J Am Chem Soc] 2008 Jun 25; Vol. 130 (25), pp. 8030-7. Date of Electronic Publication: 2008 Jun 03. |
| DOI: |
10.1021/ja8011676 |
| Abstrakt: |
Sum frequency generation (SFG) imaging is used to monitor, in situ, the reaction of cyanide ions with gold surface. Spatial and chemical variations across the surface are observed as a function of time. The initial period resulted in the formation of linearly bound cyanide to gold, and continuous exposure of gold film to cyanide solution led to the presence of higher-coordinated gold-cyanide complexes. These species were identified by their specific position in the SFG vibrational spectrum (2105, 2140, 2170, and 2225 cm(-1)). The relative amounts of these gold-cyanide species varied across the surface as resolved by SFG microscopy. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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