The structure of the blue luminescent δ-phase of tris(8-hydroxyquinoline)aluminium(III) (Alq3)

Michael Cölle; Robert E. Dinnebier; Wolfgang Brütting

doi:10.1039/B209164J

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The structure of the blue luminescent δ-phase of tris(8-hydroxyquinoline)aluminium(iii) (Alq₃)†

Michael Cölle,*^a Robert E. Dinnebier^b and Wolfgang Brütting ‡^a

Author affiliations

* Corresponding authors

^a Universität Bayreuth, Experimentalphysik II, Universitätsstr. 30, Bayreuth, Germany
E-mail: michael.coelle@uni-bayreuth.de
Fax: +49 (0)921-55 26 21
Tel: +49 (0)921 55 26 02

^b Max-Planck-Institute for Solid-State Research, Heisenbergstr. 1, Stuttgart, Germany
E-mail: R.Dinnebier@fkf.mpg.de
Fax: +49 711-689-1502
Tel: +49 711-689-1503

Abstract

The existence of the facial isomer in the δ-phase of Alq₃ is proven by X-ray structural analysis, revealing that both the different molecular structure and the weaker overlap of the π-orbitals of hydroxyquinoline ligands belonging to neighboring Alq₃ molecules as compared to other phases (α, β) are likely to be the origin of the significantly different optical properties of δ-Alq₃.

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Supplementary files

Experimental section, tables of crystallographic data, positional parameters, temperature factors, selected bond lengths and angles for the assumption of the meridonal isomer DOC (370K)

Article information

DOI: https://doi.org/10.1039/B209164J
Article type: Communication
Submitted: 19 Sep 2002
Accepted: 08 Oct 2002
First published: 05 Nov 2002

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Chem. Commun., 2002, 2908-2909

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The structure of the blue luminescent δ-phase of tris(8-hydroxyquinoline)aluminium(III) (Alq₃)

M. Cölle, R. E. Dinnebier and W. Brütting, Chem. Commun., 2002, 2908 DOI: 10.1039/B209164J

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