Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 5, Pages 2297-2301Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp110891y
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Funding
- National Research Foundation of Korea
- Ministry of Education Science and Technology [2005-2002369, 2007-0054038]
- Quantum Metamaterials Research Center [R11-2008-053-03001-0]
- National Research Foundation of Korea [2007-0054038, 2008-0062164] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Supramolecular interactions were studied in two planar model systems, 1,5- and 2,6-dibromoanthraquinones, prepared on Au(111) using scanning tunneling microscopy. In both systems, we found rigid triangular structures that consisted of simultaneous halogen bonds and hydrogen bonds, as reported in protein-ligand complexes. We proposed molecular models that were well reproduced by first-principle studies and could be explained by halogen and hydrogen bonds. The distances, angles, and, strengths of the intermolecular bonds were measured in the observed structures, and showed good agreement with existing bulk data.
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