TY - JOUR
T1 - Control of molecular rotors by selection of anchoring sites
AU - Kim, Hyo Won
AU - Han, M.
AU - Shin, H. J.
AU - Lim, S.
AU - Oh, Y.
AU - Tamada, Kaoru
AU - Hara, M.
AU - Kim, Y.
AU - Kawai, M.
AU - Kuk, Young
PY - 2011/4/8
Y1 - 2011/4/8
N2 - We demonstrate a new method to switch on and off the rotational motion of a long-chain molecule by controlling the bonding geometry between the molecule and a substrate. An azobenzene derivative molecule adsorbed on a Au(111) surface is immobile only when its three rotation centers, comprised of two phenyl rings and a nitrogen-nitrogen bond, are located at hollow sites of the Au(111) surface, as observed by scanning tunneling microscopy. Rotational motion can be activated by exciting the vibrational modes and inducing hopping motion away from the immobile site with a voltage pulse.
AB - We demonstrate a new method to switch on and off the rotational motion of a long-chain molecule by controlling the bonding geometry between the molecule and a substrate. An azobenzene derivative molecule adsorbed on a Au(111) surface is immobile only when its three rotation centers, comprised of two phenyl rings and a nitrogen-nitrogen bond, are located at hollow sites of the Au(111) surface, as observed by scanning tunneling microscopy. Rotational motion can be activated by exciting the vibrational modes and inducing hopping motion away from the immobile site with a voltage pulse.
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U2 - 10.1103/PhysRevLett.106.146101
DO - 10.1103/PhysRevLett.106.146101
M3 - Article
AN - SCOPUS:79960630595
SN - 0031-9007
VL - 106
JO - Physical Review Letters
JF - Physical Review Letters
IS - 14
M1 - 146101
ER -