COLL 139 |
| Maki Kawai, Surface Chemistry Lab, Surface Chemistry Lab, RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan |
| Motion or reaction of single molecules can be induced by the excitation of vibration modes. Electrons that inelastically tunnel from the STM tip to the molecule adsorbed on a metal surface provide an ability to excite vibration modes of molecules within the spatial resolution of sub-nano meter. The available vibration modes to be excited depends on the symmetry of the molecular orbital, which the electrons from (or to) the STM tip tunnel. Examples are shown which include an action spectrum of cis-2-butene on Pd(110) exhibiting 3 threshold bias that corresponds to the excitation of stretching modes of CH, C-C and metal-C. |
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Vibrational Analyses of Dry and Wet Surfaces
2:00 PM-5:45 PM, Monday, March 29, 2004 Marriott -- Grand Ballroom H, Oral
Division of Colloid and Surface Chemistry |