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Manipulating Localized Molecular Orbitals by Single-Atom Contacts
Physical Review Letters (2010)
  • Weihua Wang, Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China
  • Xingqiang Shi, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
  • Chensheng Lin, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
  • Rui Qing Zhang, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
  • Christian Minot, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
  • Michel A. Van Hove, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
  • Yuning Hong, Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China
  • Ben Zhong Tang, Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China
  • Nian Lin, Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China
Abstract
We have fabricated atom-molecule contacts by attachment of single Cu atoms to terpyridine side groups of bis-terpyridine tetra-phenyl ethylene molecules on a Cu(111) surface. By means of scanning tunneling microscopy/spectroscopy and density functional calculations, we have found that, due to the localization characteristics of molecular orbitals, the Cu-atom contact modifies the state localized at the terpyridine side group which is in contact with the Cu atom but does not affect the states localized at other parts of the molecule. These results illustrate the contact effects at individual orbitals and offer possibilities to manipulate orbital alignments within molecules.
Disciplines
Publication Date
2010
DOI
10.1103/PhysRevLett.105.126801
Publisher Statement
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Citation Information
Weihua Wang, Xingqiang Shi, Chensheng Lin, Rui Qing Zhang, et al.. "Manipulating Localized Molecular Orbitals by Single-Atom Contacts" Physical Review Letters Vol. 105 Iss. 12 (2010) p. 126801-1 - 126801-4 ISSN: 10797114
Available at: http://works.bepress.com/mavanhove/96/