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Mode‐Selective Electrical Excitation of a Molecular Rotor
Author(s) -
Tierney Heather L.,
Baber Ashleigh E.,
Jewell April D.,
Iski Erin V.,
Boucher Matthew B.,
Sykes E. Charles H.
Publication year - 2009
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200902025
Subject(s) - excitation , rotor (electric) , rotation (mathematics) , thioether , scanning tunneling microscope , orientation (vector space) , quantum tunnelling , electron , translation (biology) , mode (computer interface) , molecular motor , energy (signal processing) , physics , computer science , optoelectronics , materials science , nanotechnology , chemistry , artificial intelligence , quantum mechanics , stereochemistry , biochemistry , geometry , mathematics , messenger rna , gene , operating system
Batteries not included : The rotation of individual molecular rotors can be driven electrically using electrons from a scanning tunneling microscope tip (see picture). Above the threshold energy of the CH stretch excitation, tunneling electrons are effective at selectively driving rotation, but not translation of the thioether rotors. The ability to rotate individual molecules on command will permit the interrogation of many important effects like rotational energy transfer along 1D molecular chains and rotational orientation switching in ordered arrays.