Synthesis, redox behavior and electrodeposition of biferrocene-modified gold clusters

被引：51

作者：

Horikoshi, T ^{[1
]}

Itoh, M ^{[1
]}

Kurihara, M ^{[1
]}

Kubo, K ^{[1
]}

Nishihara, H ^{[1
]}

机构：

[1] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1999年 / 473卷 / 1-2期

关键词：

gold cluster; biferrocene; electrodeposition; surface plasmon;

D O I：

10.1016/S0022-0728(99)00108-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Biferrocene-modified Au clusters, comprising a 2.2 +/- 0.3 nm-diameter Au core covered with 20 biferrocene-terminated thiolates and 75 octyl thiolates on average, were synthesized by a substitution reaction of octanethiol-modified clusters with biferrocene-terminated alkanethiol, (eta(5)-C5H5)Fe(C10H8)Fe(eta(5)-C5H4CO(CH2)(7)SH) (1). The biferrocene-modified cluster undergoes two-step oxidation reactions in NBu4ClO4 + CH2Cl2 and the second oxidation process leads to the formation of a uniform redox-active Au cluster film on electrode. The surface plasmon absorption of the cluster film depends on the oxidation state of the redox active species on the cluster surface. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：113 / 116

页数：4

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