COLL 329 |
| Dalia G. Yablon, Advanced Lubrication Sciences, Advanced Lubrication Sciences, ExxonMobil Research and Engineering, 1545 Rt. 22 East, Annandale, NJ 08801 |
| We explore the many different ways in which chirality affects surface structures, as examined in physisorbed self-assembled monolayers at a liquid-solid interface. The set of molecules under investigation are long-chain functionalized hydrocarbons that contain "chemical marker groups" or functional groups that appear with enhanced or decreased tunneling contrast with respect to the hydrocarbon backbone. This discussion includes examples of chiral molecules forming interfacial domains that can be chiral or achiral, achiral molecules forming surface structures that possess 2D chirality, and finally mixtures of chiral and achiral molecules that lead to interesting and often unexpected surfaces. In the last case of mixtures of chiral and achiral molecules, a model will be presented to explain observed differences in the mixture's surface structure as a function of differences in molecular lengths. |
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Nanoscience and Nanotechnology
8:30 AM-11:45 AM, Tuesday, March 30, 2004 Marriott -- Grand Ballroom J, Oral
Division of Colloid and Surface Chemistry |