交替α,α'-噻吩-膦环戊二烯低聚物的合成与电子性质

Synthesis and electronic properties of alternating alpha,alpha'-thiophene-phosphole oligomers.

作者信息

Hay Caroline, Fave Claire, Hissler Muriel, Rault-Berthelot Joëlle, Réau Régis

机构信息

Institut de Chimie, UMR 6509 and UMR 6510, CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.

出版信息

Org Lett. 2003 Sep 18;5(19):3467-70. doi: 10.1021/ol0352658.

DOI:10.1021/ol0352658

PMID:12967301

Abstract

[structure: see text] Alternating thiophene-phosphole oligomers up to seven rings in length have been synthesized. A regular decrease of the HOMO-LUMO gap is observed upon increasing the length of the pi-conjugated system. The nature of the P-moieties dramatically influences the optical and electrochemical properties of these phosphole-based oligomers. Electro-oxidation of derivative 5a afforded an electroactive polymer exhibiting reversible p-doping.

摘要

[结构：见文本] 已合成了长度达七个环的交替噻吩-膦环戊二烯低聚物。随着π共轭体系长度的增加，观察到最高占据分子轨道（HOMO）与最低未占据分子轨道（LUMO）之间的能隙有规律地减小。磷部分的性质极大地影响了这些基于膦环戊二烯的低聚物的光学和电化学性质。衍生物5a的电氧化得到了一种表现出可逆p型掺杂的电活性聚合物。