Single-crystal structure determination of a new polymorph (ε-Alq3) of the electroluminescence OLED (organic light-emitting diode) material, tris(8-hydroxyquinoline)aluminum (Alq3)

Author： Rajeswaran Manju   Blanton Thomas  

Publisher： Springer Publishing Company

ISSN： 1074-1542

Source： Journal of Chemical Crystallography, Vol.35, Iss.1, 2005-01, pp. : 71-76

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Abstract

Tris(8-hydroxyquinoline) aluminum, Alq3, is the most widely used electroluminescent material in organic light-emitting diode (OLED), chemistry. Single-crystal structure determination of a new polymorph of Alq3, designated as ε-Alq3, is described. There are three molecules of Alq3 in the asymmetric unit. This octahedrally coordinated complex crystallizes in the triclinic space group P-1, lattice parameters a = 13.5190(5) Å, b = 15.8550(6)~Å, c = 18.7110(8) Å, α = 95.4940(19)∘, β = 109.774(2)∘, γ = 114.6270(16)∘, Volume = 3296.8(2) Å3, Z = 6, Z′ = 3.

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