COLL 471 |
| Guo-Ping Jiang, Materials science and engineering, Materials science and engineering, Energenius Centre for Advanced Nanotecnolgy University of Toronto, Haurting Bldg. , Room 204, 170 College St., Toronto, ON M5S 3E4, Canada |
| This work presents a comparison study of benzene and ClPh surface chemical reaction induced by multi photo and electron on Si(111)-(7x7) surfaces. Local density function calculation provides a clear precursor state for both benzene and ClPh molecules. This precursor state is a reasonable start point for forming multiple geometric configurations when benzene and ClPh reaction with Si(111)-(7x7) surface. The typical different chemical reactivity among surface Si rest atom and Si adatom corner are presented and theoretically analyzed. The finally calculated electron spectroscopy clearly shows the Si(111)-(7x7) surface has metallic properties and why the preferred benzene and ClPh adsorption states are di-sigma-bonds with a Si middle adatom and a Si rest atom. |
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Symposium in Memory of Arthur W. Adamson
8:30 AM-11:50 AM, Thursday, April 1, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |