Adsorption of L-Phenylalanine on Cu(001)
WANG Hao, ZHAO Xue-Ying, ZHAO Ru-Guang, YANG Wei-Sheng
The Mesoscopic Physics Laboratory and Department of Physics,
Peking University, Beijing 100871
Adsorption of L-Phenylalanine on Cu(001)
WANG Hao;ZHAO Xue-Ying;ZHAO Ru-Guang;YANG Wei-Sheng
The Mesoscopic Physics Laboratory and Department of Physics,
Peking University, Beijing 100871
关键词 ：
82.65.My ,
68.35.Bs ,
61.16.Ch
Abstract ： Adsorption of phenylalanine on Cu(001) surface was studied by means of scanning tunneling microscopy in ultra high vacuum and has been found to result in only one superstructure, i.e., c(2 x 4). Moreover, it induces steps faceting to <310> directions and faceted steps bunching to form {3 1 17} facets. In view of the small size of the c(2 x 4) unit cell, phenyl ring of the molecule is suggested to be oriented nearly perpendicular rather than parallel to the surface. A model thus has been proposed for the c(2 x 4) superstructure, where the π-stacking interactions between neighboring phenyl rings, in addition to hydrogen bond formation, are expected to play an important role in stabilization of the superstructure.
Key words ：
82.65.My
68.35.Bs
61.16.Ch
出版日期: 2001-03-01
引用本文:
WANG Hao;ZHAO Xue-Ying;ZHAO Ru-Guang;YANG Wei-Sheng. Adsorption of L-Phenylalanine on Cu(001)[J]. 中国物理快报, 2001, 18(3): 445-448.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I3/445
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