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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Friday, 28 September 2007
(at 10:15 in room 115, Hallwachsstr. 3)
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Electron induced ortho-meta isomerization of single molecules

Rafael Gutierrez

Institute for Materials Science
Dresden University of Technology

(From doi:10.1103/PhysRevLett.98.116102): A scanning tunneling microscope operating at 5 K is used to induce the isomerization of single chloronitrobenzene molecules on Cu(111) and verify the reaction. The threshold voltage of (227ü7) mV for this reaction is explained based on electron-induced vibrational heating. We propose that the isomerization is initiated by simultaneous excitation of two vibrational molecular modes via inelastically tunneling electrons. This excitation results in a shift of the distribution probability of chlorine and hydrogen positions, which facilitates their mutual exchange.

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Invited by G. Cuniberti (JClub)

Within the Journal Club

last modified: 2021.10.02 Sat
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