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Red−Green−Blue Emission from Tris(5-aryl-8-quinolinolate)Al(III) Complexes

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Radek Pohl,^† Victor A. Montes,^† Joseph Shinar,^‡ and Pavel Anzenbacher Jr.*^†

Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, and Ames Laboratory-USDOE and Department of Physics, Iowa State University, Ames, Iowa 50011 pavel@bgnet.bgsu.edu

J. Org. Chem., 2004, 69 (5), pp 1723–1725

DOI: 10.1021/jo035602q

Publication Date (Web): January 30, 2004

†

Bowling Green State University.

‡

Iowa State University.

To whom correspondence should be addressed. Phone: (419) 372-2080. Fax: (419) 372-9809.

Abstract

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.

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Published In Issue March 05, 2004
Received October 30, 2003

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Red−Green−Blue Emission from Tris(5-aryl-8-quinolinolate)Al(III) Complexes