| Revealing the angular symmetry of chemical bonds by atomic force microscopy. | |
| | |
MedLine Citation:
|
PMID: 22539715 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
We have measured the angular dependence of chemical bonding forces between a carbon monoxide molecule that is adsorbed to a copper surface and the terminal atom of the metallic tip of a combined scanning tunneling microscope and atomic force microscope. We provide tomographic maps of force and current as a function of distance that revealed the emergence of strongly directional chemical bonds as tip and sample approach. The force maps show pronounced single, dual, or triple minima depending on the orientation of the tip atom, whereas tunneling current maps showed a single minimum for all three tip conditions. We introduce an angular dependent model for the bonding energy that maps the observed experimental data for all observed orientations and distances. |
| | |
Authors:
|
Joachim Welker; Franz J Giessibl |
Related Documents
:
|
22841585 - Conformational study of the open-chain and furanose structures of d-erythrose and d-thr... 19943695 - Organoplatinum complex promoted the asymmetric endo stereochemically controlled diels-a... 20415435 - Nickel- and copper-catalyzed direct alkynylation of azoles and polyfluoroarenes with te... 17373005 - Intramolecular reactions in pseudo-geminally substituted [2.2]paracyclophanes. 23321365 - Effect of acute cadmium exposure on metal accumulation and oxidative stress biomarkers ... 19753365 - Eliminating the need for independent counterions in the construction of metal-organic r... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Science (New York, N.Y.) Volume: 336 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2012 Apr |
Date Detail:
|
Created Date: 2012-04-27 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
|
Languages: eng Pagination: 444-9 Citation Subset: IM |
Affiliation:
|
Experimental and Applied Physics, University of Regensburg, Regensburg, Germany. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A 920-kilometer optical fiber link for frequency metrology at the 19th decimal place.
Next Document: Coils and polygonal crust in the Athabasca Valles region, Mars, as evidence for a volcanic history.