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Science 26 May 2006:
Vol. 312. no. 5777, pp. 1196 - 1199
DOI: 10.1126/science.1126073
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Reports

Imaging Bond Formation Between a Gold Atom and Pentacene on an Insulating Surface

Jascha Repp,1* Gerhard Meyer,1 Sami Paavilainen,2 Fredrik E. Olsson,3 Mats Persson4

A covalent bond between an individual pentacene molecule and a gold atom was formed by means of single-molecule chemistry inside a scanning tunneling microscope junction. The bond formation is reversible, and different structural isomers can be produced. The single-molecule synthesis was done on ultrathin insulating films that electronically isolated the reactants and products from their environment. Direct imaging of the orbital hybridization upon bond formation provides insight into the energetic shifts and occupation of the molecular resonances.

1 IBM Zurich Research Laboratory, 8803 Rüschlikon, Switzerland.
2 Institute of Physics, Tampere University of Technology, 33720 Tampere, Finland.
3 Department of Applied Physics, Chalmers, 41296 Göteborg, Sweden.
4 Surface Science Research Centre and Department of Chemistry, The University of Liverpool, Liverpool L69 3BX, UK.

* To whom correspondence should be addressed. E-mail: jre{at}zurich.ibm.com

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Current-Induced Hydrogen Tautomerization and Conductance Switching of Naphthalocyanine Molecules.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)