Red−Green−Blue Emission from Tris(5-aryl-8-quinolinolate)Al(III) Complexes
作者:Radek Pohl、Victor A. Montes、Joseph Shinar、Pavel Anzenbacher
DOI:10.1021/jo035602q
日期:2004.3.1
A simple yet effective strategy for synthesis of 5-aryl-8-quinolinolate-based electroluminophores with tunable emission wavelengths is presented. Two different pathways for the attachment of electron-donating or electron-withdrawing aryl groups to the 5-position of the quinolinolate ligand via Suzuki coupling were developed. A successful tuning in the emission color was achieved: the emission wavelength was found to correlate with the Hammett constant of the respective substituents, providing a powerful strategy for prediction of the optical properties of new electroluminophores.
Effective Manipulation of the Electronic Effects and Its Influence on the Emission of 5-Substituted Tris(8-quinolinolate) Aluminum(III) Complexes
作者:Victor A. Montes、Radek Pohl、Joseph Shinar、Pavel Anzenbacher
DOI:10.1002/chem.200501403
日期:2006.6.2
tris(8-quinolinolate) aluminum(III) (Alq(3)) have resulted in extensive use of this material for small molecular organic light-emitting diode (OLED) fabrication. So far, efforts to prepare stable and easy-to-process red/green/blue (RGB)-emitting Alq(3) derivatives have met with only a limited success. In this paper, we describe how the electronic nature of various substituents, projected via an arylethynyl