Preparation of Two Luminescent Complexes: AlIII(8-hydroxyquinolinolato)3 and EuIII(thenoyltrifluoroacetonato)3(1,10-phenanthroline)

Qinde Liu and Suning Wang
Department of Chemistry, Queen''s University, Kingston, Ontario K7L 3N6, Canada
J. Chem. Educ., 2003, 80 (12), p 1474
DOI: 10.1021/ed080p1474
Publication Date (Web): December 1, 2003

Abstract

A simple procedure for the syntheses of two luminescent compounds, which are widely used in organic light-emitting diodes, is presented. This experiment is suitable for an undergraduate inorganic laboratory. The two compounds are a main group coordination compound AlIIIq3, where q is 8-hydroxyquinolinolato, and a lanthanide coordination compound EuIII(tta)3(phen), where tta is thenoyltrifluoroacetonato and phen is 1,10-phenanthroline. These compounds demonstrate two types of luminescence, ligand-centered emission in AlIIIq3 and ligand-enhanced π to π transitions in EuIII(tta)3(phen). Furthermore, this experiment demonstrates the role of chelating ligands in the formation of complexes and luminescence.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Inorganic Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Aluminum

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History

  • Received: August 03, 2009

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