Structure of Alkyl and Perfluoroalkyl Disulfide and Azobenzenethiol Monolayers on Gold(111) Revealed by Atomic Force Microscopy
Structure of Alkyl and Perfluoroalkyl Disulfide and Azobenzenethiol Monolayers on Gold(111) Revealed by Atomic Force Microscopy
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原子力显微镜揭示金（111）上烷基和全氟烷基二硫化物和偶氮苯硫醇单层结构
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发表时间：
1996
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影响因子：
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通讯作者：
H. Ringsdorf
中科院分区：
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作者：
Manfred Jaschke;H. Schönherr;H. Wolf;H. Butt;E. Bamberg;and M. K. Besocke;H. Ringsdorf
用原子力显微镜研究了金(111)表面各种硫醇和二硫键自组装膜的结构。目的是分析决定分子二维结构的因素。单分子膜是由不同的二硫化物和硫醇形成的：双(2-羟乙基)二硫化物的 长链烷基酯和全氟烷基酯，几种偶氮苯硫醇和十八烷硫醇。可以区分三种类型的二维结构： (1)由下面的金(111)晶格主导的公度单分子膜；一个例子是n-烷硫醇单分子膜；(2)无公度或至多是高阶公度单分子膜，其取向仍然由金(111)衬底决定；这种类型的单分子膜可能发生在所研究的所有二硫化物中；(3)非公度单分子膜，其取向是任意的，不是由下面的金(111)决定的。偶氮苯硫醇的单分子膜就属于这一类。
The structure of various self-assembled thiol and disulfide monolayers on gold(111) has been studied with the atomic force microscope. The aim was to analyze the factors which determine the two-dimensional structure of the molecules. Monolayers were formed from different disulfides and thiols: long-chain alkyl and perfluoroalkyl esters of bis(2-hydroxyethyl) disulfide, several azobenzenethiols, and octadecanethiol. Three classes of two-dimensional structures could be distinguished: (1) commensurate monolayers, which were dominated by the underlying gold(111) lattice; an example is n-alkanethiol monolayers; (2) incommensurate or at most high-order commensurate monolayers, whose orientation was still determined by the gold(111) substrate; this type of monolayer probably occurred with all disulfides investigated; (3) incommensurate monolayers, whose orientation was arbitrary and not determined by the underlying gold(111). Monolayers of azobenzenthiols belonged to this class.