DOIONLINE 
DOIONLINE Publish In |
International Journal of Advances in Science, Engineering and Technology(IJASEAT)-IJASEAT |
 Journal Home Volume Issue |
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Issue |
Volume-6, Issue-3, Spl. Iss-2 ( Sep, 2018 ) | |||||||||
Paper Title |
Two-Dimentiaonal Nanofabrication of Phenanthrene Deriatives With Different Substituted Groups At The Liquid/Solid Interface | |||||||||
Author Name |
Xinrui Miao, Jinxing Li, Fabien Silly | |||||||||
Affilition |
College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China. TITANS, SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, Gif sur Yvette, F-91191, France | |||||||||
Pages |
52-55 | |||||||||
Abstract |
The self-assembly of two kinds of phenanthrene deriatives (P-2O and P-2OH) with two carbonyl groups and two hydroxyl groups are investigated by using scanning tunneling microscopy (STM), respectively. STM images show that these two kinds of molecules self-assembly into linear patterns at the liquid/solid interface on graphite. Two conjugated cores of P-2O molecules in each trough pack almost in face-to-face fashion, in which the intermolecular van der Waals interactions resulting from the interdigitated side chains are the dominated forces to stabilize the nanostructure. In the adlayer of P-2OH, the conjugated cores in each trough connect each other to form the zigzag linear pattern, owing to the intermolecular hydrogen bonds between the hydroxyl groups. These observation demonstrate that a slight modification of the molecular chemical structure can drastically affect the final self-assembled patterns of 2D hydrogen-bonded adlayers. Keywords- Scanning tunneling microscopy, Self-assembly, Hydrogen bond, Phenanthene. | |||||||||
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