Toward the Control of the Creation of Mixed Monolayers on Glassy Carbon Surfaces by Amine Oxidation

被引：8

作者：

Groppi, Jessica ^{[1
]}

Bartlett, Philip N. ^{[2
]}

Kilburn, Jeremy D. ^{[3
]}

机构：

[1] Queen Mary Univ London, Sch Biol & Chem Sci, Mile End Rd, London E1 4NS, England

[2] Univ Southampton, Fac Nat & Environm Sci, Chem, Southampton SO17 1BJ, Hants, England

[3] Univ Aberdeen, Kings Coll, Aberdeen AB24 3FX, Scotland

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 03期

关键词：

amines; electrochemistry; monolayers; osmium; solid-phase synthesis; SELF-ASSEMBLED MONOLAYERS; PHASE SYNTHESIS METHODOLOGIES; ELECTROCHEMICAL OXIDATION; COVALENT MODIFICATION; MOLECULAR RULERS; NORBORNYLOGOUS BRIDGES; ELECTRON-TRANSFER; ORGANIC FILMS; REDOX CENTERS; GOLD;

D O I：

10.1002/chem.201503120

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A versatile and simple methodology for the creation of mixed monolayers on glassy carbon (GC) surfaces was developed, using an osmium-bipyridyl complex and anthraquinone as model redox probes. The work consisted in the electrochemical grafting on GC of a mixture of mono-protected diamine linkers in varying ratios which, after attachment to the surface, allowed orthogonal deprotection. After optimisation of the deprotection conditions, it was possible to remove one of the protecting groups selectively, couple a suitable osmium complex and cap the residual free amines. The removal of the second protecting group allowed the coupling of anthraquinone. The characterisation of the resulting surfaces by cyclic voltammetry showed the variation of the surface coverage of the two redox centres in relation to the initial ratio of the linking amine in solution.

引用

页码：1030 / 1036

页数：7

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