Direct observation of sulfur dimers in alkanethiol self-assembled monolayers on Au(111)

被引：115

作者：

Kluth, GJ ^{[1
]}

Carraro, C ^{[1
]}

Maboudian, R ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.59.R10449

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution electron-energy-loss spectra of octadecanethiol self-assembled monolayers (SAM's) on Au thin films have been obtained after annealing the sample to various temperatures. Annealing to 375 K results in the appearance of the S-S stretch at 530 cm(-1), a direct observation of sulfur dimers for alkanethiol SAM's adsorbed on Au. The appearance of dimers following annealing is explained by the presence of an activation barrier to the formation of gauche defects at the S-C bond. [S0163-1829(99)51016-3].

引用

页码：10449 / 10452

页数：4

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