SCANNING TUNNELING MICROSCOPY STUDIES OF AU(111) DERIVATIZED WITH ORGANOTHIOLS

被引:139
作者
KIM, YT [1 ]
MCCARLEY, RL [1 ]
BARD, AJ [1 ]
机构
[1] UNIV TEXAS,DEPT CHEM & BIOCHEM,AUSTIN,TX 78712
关键词
D O I
10.1021/j100197a052
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Atomic resolution scanning tunneling microscopy (STM) images of various-sized organothiols adsorbed on Au(111) display a (square-root 3 X square-root 3)R30-degrees structure, even when the omega-substituent size (4.3-13 angstrom) is so large that such a packing should not be possible. The observation of a (square-root 3 X square-root 3)R30-degrees structure for thiols that should pack less densely suggests that the observed images are of gold electronic distributions that have been perturbed by the adsorbed thiol.
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页码:7416 / 7421
页数:6
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