Tris(8-hydroxyquinolinato)aluminium
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| Tris(8-hydroxyquinolinato)aluminium | |
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| IUPAC name | Tris(8-hydroxyquinolinato)aluminium |
| Other names | 8-Hydroxyquinoline aluminum salt, Alq3, Aluminum 8-hydroxyquinolinate, Aluminum oxinate, |
| Identifiers | |
| CAS number | [2085-33-8] |
| Properties | |
| Molecular formula | C27H18AlN3O3 |
| Molar mass | 459.43 |
| Melting point |
>300 °C |
| Solubility in water | insol in water |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Tris(8-hydroxyquinolinato)aluminium is the chemical compound with the formula Al(C9H6NO)3. Widely abbreviated Alq3, it is a coordination complex wherein aluminium is bonded in a bidentate manner to the conjugate base of three 8-hydroxyquinoline ligands. Both the meriodonal and facial isomers are known as well as several polymorphs (different crystalline forms).[1] The compound is prepared by the reaction of 8-hydroxyquinoline with aluminium(III) sources[2]
- Al3+ + C9H6NOH → Al(C9H6NO)3 + 3 H+
Alq3 is a common component of organic light-emitting diodes (OLED's). Variations in the substituents on the quinoline rings affect its luminescence properties.[3]
[edit] References
- ^ Michael Cölle, Robert E. Dinnebier and Wolfgang Brütting "The structure of the blue luminescent -phase of tris(8-hydroxyquinoline)aluminium(III) (Alq3)" Chemical Communications 2002, pp. 2908-9. DOI: 10.1039/b209164j.
- ^ Katakura, R.; Koide, Y. “Configuration-Specific Synthesis of the Facial and Meridional Isomers of Tris(8-hydroxyquinolinate)aluminum (Alq3)” Inorganic Chemistry 2006 volume 45,pp 5730-5732. DOI: 10.1021/ic060594s.
- ^ Victor A. Montes, Radek Pohl, Joseph Shinar, Pavel Anzenbacher Jr. "Effective Manipulation of the Electronic Effects and Its Influence on the Emission of 5-Substituted Tris(8-quinolinolate) Aluminum(III) Complexes" Chemistry - A European Journal 2006, Volume 12, pp. p 4523-4535. DOI: 10.1002/chem.200501403
