COLL 222 |
| R. Selvan, Zhuhua Qi, Ronald J. Wysocki Jr., and Vicki H. Wysocki. Department of Chemistry, University of Arizona, 1306 E. University Blvd, Tucson, AZ AZ-85721 |
| The synthesized disulfides CF3(CF2)9(CH2)2S-S(CH2)2(CF2)9CF3, CF3(CF2)9(CH2)2S-S(CH2)11CH3 and CF3(CF2)9(CH2)2S-S(CH2)17CH3 were individually assembled on the gold surface using standard procedures. Electron and energy transfer from the surfaces assembled with disulfides towards the projectile ion is obtained by reactive ion scattering spectrometry (RISS). The results clearly suggests that disulfides are arranged in a different geometry compared to surfaces assembled from single thiol such as CF3(CF2)9(CH2)2SH. Wettability studies on these surfaces by drop shape analyzer also confirm the differences. Infrared measurements were done to find the surface order of the assembled thin films. |
|
Posters: Fundamental Research in Surface and Colloid Chemistry
6:00 PM-8:00 PM, Monday, March 29, 2004 Disneyland -- North Exhibit Hall, Poster
Division of Colloid and Surface Chemistry |