Synthesis, characterization and preliminary investigation of the electro redox properties of anthracenyl-functionalized terpyridyl ligands

被引：8

作者：

Adeloye, Adewale O. ^{[1
]}

Ajibade, Peter A. ^{[1
]}

机构：

[1] Univ Ft Hare, Dept Chem, Fac Sci & Agr, ZA-5700 Alice, South Africa

来源：

TETRAHEDRON LETTERS | 2011年 / 52卷 / 02期

关键词：

Terpyridine ligands; 9,10-Dibromoanthracene; Palladium-catalyzed reactions; Electrochemistry; RUTHENIUM COMPLEXES; DIRUTHENIUM COMPLEXES; DERIVATIVES;

D O I：

10.1016/j.tetlet.2010.11.022

中图分类号：

O62 [有机化学];

学科分类号：

070303 [有机化学];

摘要：

We report the synthesis, characterization and preliminary investigation of the electro redox properties of soluble bromoterpyridine ligand precursors L1, L2 and L3 having one to three anthracenyl modules. The synthetic protocol is based on sequential palladium cross-coupling reactions between 9,10-dibromoanthracene and bromoterpyridine, 9-bromoanthracene-terpyridine or 9-bromo-dianthraceneterpyridine synthons. With increasing numbers of anthracene units on the terpyridine ligand, common absorption wavelengths at the near visible region and enhanced molar absorptivity coefficients were recorded. However, the luminescence intensity decreases with increasing length of pi-conjugation relating to aggregation effects in the molecules. The cyclic voltammograms of L1 and L2 display good electro redox activity, being better than that of L3. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：274 / 277

页数：4

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