Chain-length dependence of the electrochemical properties of conjugated oligofluorenes

被引：110

作者：

Chi, CY ^{[1
]}

Wegner, G ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2005年 / 26卷 / 19期

关键词：

charge density; cyclic voltammetry; ionization potential; oligofluorenes;

D O I：

10.1002/marc.200500437

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Electrochemical properties of monodisperse oligofluorenes (OFn, n = 2 to 7) and corresponding polyfluorene were studied by cyclic and differential pulse voltammetry. In combination with data of UV-vis absorption spectra, a series of linear relations such as the band gap, the oxidation potential, the ionization potential, and the electron affinity with the reciprocal number of the fluorene units (1/n) were deduced. When a chain length of ca. 14 repeat units is reached, a stable structure of about one positive charge per 3.5 repeat units is obtained.

引用

收藏

页码：1532 / 1537

页数：6

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