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Experimental and theoretical investigations on the epitaxial growth of 4,4[prime] stilbenedicarboxylic acid molecules on Au(111)

J. Chem. Phys. 131, 174706 (2009); doi:10.1063/1.3256288

Published 5 November 2009

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Yan Feng Zhang,1 Yong Yang,2 Yoshiyuki Kawazoe,2 and Tadahiro Komeda1,3
1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
2Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
3CREST, JST, Honcho 4-1-8, Kawaguchi-shi, Saitama 332–0012, Japan
We report on scanning tunneling microscope observations of the epitaxial growth of 4,4[prime] stilbenedicarboxylic acid (SDA) molecules on Au(111), with the coverage ranges from submonolayer to one monolayer. The surface assembly evolves from one-dimensional molecular chains to striped islands and finally monolayer films. For two-dimensional assembly, the head-to-tail hydrogen bonding is found to dominate the molecule-molecule interactions. Each linking region of the SDA molecular chains consists of two hydrogen bonds. This is confirmed by our first-principles calculations where the hydrogen bond length, hydrogen bond energy, and SDA-Au interaction energy are deduced theoretically. Moreover, the configurations with interchain hydrogen bonds are energetically unstable. The roles of the herringbone reconstruction of Au(111) and the compression effect of a complete film on the formation of molecular ribbons are discussed. ©2009 American Institute of Physics
History: Received 5 May 2009; accepted 28 September 2009; published 5 November 2009
Permalink: http://link.aip.org/link/?JCPSA6/131/174706/1
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KEYWORDS and PACS

Keywords
PACS
  • 68.55.am
    Polymer and organic thin film nucleation and growth
  • 68.37.Ef
    Scanning tunneling microscopy of surfaces, interfaces and thin films
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-9606 (print)   1089-7690 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (19)
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