STRUCTURAL ASPECTS OF TETRAMETHYLTHIOUREA ADSORPTION ON AU(111) ELECTRODES INVESTIGATED BY IN-SITU SCANNING-TUNNELING-MICROSCOPY

被引：19
|
作者：
BUNGE, E
NICHOLS, RJ
BAUMGARTEL, H
MEYER, H
机构：
[1] UNIV LIVERPOOL,DEPT CHEM,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND
[2] FREE UNIV BERLIN,D-14195 BERLIN,GERMANY
来源：
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1995年 / 99卷 / 10期
关键词：
ADSORPTION; ELECTROCHEMISTRY; ORGANIC MOLECULES; SCANNING TUNNELING MICROSCOPY;
D O I：
10.1002/bbpc.199500066
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：
We have examined tetramethylthiourea (TMTU) adsorption on Au(lll) with capacitance measurements and in situ scanning tunnelling microscopy (STM). Capacitance measurements of the TMTU-containing solution indicate that the organic molecule is adsorbed over a wide potential range. High resolution STM images at +20 mV are totally different to those in the absence of TMTU and point to an ordered structure of the organic adsorbate. Three distinctive bright spots are seen in the STM images. A model has been developed with the molecules lying near to horizontal on the surface, forming a (3 x 3) adlayer.
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页码：1243 / 1246
页数：4
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