Emission color tuning in AlQ3 complexes with extended conjugated chromophores

被引：169

作者：

Pohl, R

Anzenbacher, P ^{[1
]}

机构：

[1] Bowling Green State Univ, Ctr Photochem Sci, Bowling Green, OH 43403 USA

[2] Bowling Green State Univ, Dept Chem, Bowling Green, OH 43403 USA

来源：

ORGANIC LETTERS | 2003年 / 5卷 / 16期

关键词：

D O I：

10.1021/ol034693a

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Graphics A new method for the synthesis of 5-arylethynyl-8-hydroxyquinoline ligands using Sonogashira-Hagihara coupling was developed. The electronic nature of arylethynyl substituents affects the emission color and quantum yield of the resulting Al(III) complex. Photophysical properties of the metallocomplexes correspond to the electron-withdrawing/-donating character of the arylethynyl substituents. Optical properties of such AI(Ill) complexes correlate with the Hammett constant values of the respective substituents. This strategy offers a powerful tool for the preparation of electroluminophores with predictable photophysical properties.

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页码：2769 / 2772

页数：4

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