Structure and dynamics of monolayers on planar and cluster surfaces
Structure and dynamics of monolayers on planar and cluster surfaces
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DOI：
10.1351/pac200274091593
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发表时间：
2002-09-01
影响因子：
1.8
通讯作者：
Sandhyarani, N
中科院分区：
文献类型：
--
作者：
Pradeep, T;Sandhyarani, N
有组织的分子组装一直是当代化学的热门领域之一。在用于制造有组织单层结构的各种方法中，自组装单层（SAM）由于制备方法简单且稳定性高而吸引了许多材料化学家。各种技术的进步及其在 SAM 研究中的应用极大地提高了我们对这些分子系统的理解。自从成功制备单层保护的稳定金属簇以来，这些研究得到了进一步加强。本文主要在我们自己在该领域的工作背景下回顾了单分子层的结构、温度诱导的相变和相关动力学。以 Au(111) 和 Ag(111) 上的烷硫醇为原型体系讨论 2D SAM 的性能；我们实验室的研究主要针对蒸发薄膜。 Au 和 Ag 簇表面上的烷硫醇作为 3D SAM 的示例。虽然我们的主要重点是烷硫醇，但我们也会涉及一些其他吸附物系统。
Organized molecular assemblies have been one of the intensely pursued areas of contemporary chemistry. Among the various methodologies used to make organized monolayer structures, self-assembled monolayers (SAMs) have been attractive to many materials chemists owing to the simplicity of the preparative method and high stability. Advances in various techniques and their application in the study of SAMs have significantly improved our understanding of these molecular systems. These studies have been further intensified since the successful preparation of stable metal clusters protected with monolayers. This article reviews the structure, temperature-induced phase transitions, and associated dynamics of monolayers, principally in the context of our own work in this area. Alkanethiols on Au(111) and Ag(111) are taken as archetypal systems to discuss the properties of 2D SAMs; studies from our laboratory have been on evaporated thin films. Alkanethiols on Au and Ag cluster surfaces are taken as examples of 3D SAMs. Although our principal focus will be on alkanethiols, we will touch upon a few other adsorbate systems as well.