Comparative Studies of Photoelectron Spectroscopy and Voltammetry of Ferrocene-Terminated Self-Assembled Monolayers Possessing Different Electron-Donating Abilities

被引：22

作者：

Yokota, Yasuyuki ^{[1
]}

Mino, Yoshitada ^{[1
]}

Kanai, Yuta ^{[1
]}

Utsunomiya, Toru ^{[1
]}

Imanishi, Akihito ^{[1
]}

Wolak, Matthaeus A. ^{[2
]}

Schlaf, Rudy ^{[2
]}

Fukui, Ken-ichi ^{[1
]}

机构：

[1] Osaka Univ, Dept Mat Engn Sci, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan

[2] Univ S Florida, Dept Elect Engn, Tampa, FL 33620 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 20期

基金：

日本学术振兴会;

关键词：

QUARTZ-CRYSTAL MICROBALANCE; UNSUBSTITUTED ALKANETHIOLS; OXIDATION POTENTIALS; ALKYL THIOLS; GOLD; DERIVATIVES; METAL; COMPLEXES; 11-FERROCENYL-1-UNDECANETHIOL; FUNCTIONALIZATION;

D O I：

10.1021/jp5023899

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The relationship between the oxidation potential determined by electrochemical measurements and the ionization energies measured by gas-phase ultraviolet photoelectron spectroscopy (UPS) has long been a focus of research of various groups. The focus of this study is to reveal such a correlation for redox molecules, which are chemically attached to metal electrodes. X-ray photoelectron spectroscopy, UPS, and cyclic voltammetry were performed for three types of ferrocene-terminated self-assembled monolayers possessing different electron-donating abilities. The results of these experiments indicate a linear relation with a slope of similar to 0.7 between the UPS-derived energy of the highest occupied molecular orbital (HOMO) and the electrochemical oxidation potential. This indicates that the HOMO energy can be used to determine the oxidation potential of chemically modified electrodes.

引用

页码：10936 / 10943

页数：8