The adsorption of unsymmetrical spiroalkanedithiols onto gold affords multi-component interfaces that are homogeneously mixed at the molecular level

被引：64

作者：

Shon, YS ^{[1
]}

Lee, S ^{[1
]}

Perry, SS ^{[1
]}

Lee, TR ^{[1
]}

机构：

[1] Univ Houston, Dept Chem, Houston, TX 77204 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 07期

关键词：

D O I：

10.1021/ja991987b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Exposure of the unsymmetrical spiroalkanedithiol, 2-octyl-2-pentadecylpropane-1,3-dithiol, to the surface of gold afforded a multicomponent self-assembled monolayer (SAM) in which the differing tail groups were well mixed at the molecular level. The new "mixed" SAM was characterized by ellipsometry, contact angle goniometry, polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS), and atomic force microscopy (AFM). Comparison of the new SAM to those generated by the coadsorption of mixtures of normal alkanethiols having analogous chain lengths and surface compositions showed that local domain formation (or "islanding") of the tail groups found in the latter SAMs was absent in the SAM derived from the unsymmetrical spiroalkanedithiol.

引用

页码：1278 / 1281

页数：4

共 25 条

[1] ACTIVE CONTROL OF WETTING USING APPLIED ELECTRICAL POTENTIALS AND SELF-ASSEMBLED MONOLAYERS [J].