Functionalized self-assembled alkanethiol monolayers on Au(111) electrodes:: 1.: Surface structure and electrochemistry

被引：176

作者：

Esplandiú, MJ ^{[1
]}

Hagenström, H ^{[1
]}

Kolb, DM ^{[1
]}

机构：

[1] Univ Ulm, Dept Electrochem, D-89069 Ulm, Germany

来源：

LANGMUIR | 2001年 / 17卷 / 03期

关键词：

D O I：

10.1021/la001139q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Functionalized alkanethiols (-CH3, -NH2, -OH, -COOH, -SH, -SO3H, -CN) of different lengths, self-assembled on Au(111), were studied with cyclic voltammetry and in situ scanning tunneling microscopy. The surface structure was determined under potential conditions at which only a dielectric behavior is expected. In general, the size of the terminal group together with the chemical interaction between neighboring thiol molecules plays a crucial role for the resulting adlayer structure. Shorter-chain thiols with bulky endgroups frequently lead to lower density coverages and more distorted packings.

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页码：828 / 838

页数：11

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