Experimental and theoretical study of the effect of the substituent nature on the luminescent properties of scandium complexes with substituted 8-hydroxyquinolines |
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| Authors: | A F Shestakov M A Katkova N S Emel’yanova T V Balashova V A Il’ichev A N Konev D M Kuzyaev V A Lopatin M N Bochkarev |
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| Institution: | 1.Institute of Problems of Chemical Physics,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia;2.Razuvaev Institute of Organometallic Chemistry,Russian Academy of Sciences,Nizhni Novgorod,Russia |
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| Abstract: | The luminescent properties of homoleptic scandium complexes with 2-substituted 8-hydroquinolines bearing the substituent groups
H (1), CH3 (2), CN (3), and NH2 (4) were studied for use as emission layers in organic light-emitting diodes. It was found that the introduction of a substituent
into the 2-position makes its possible to effectively shift the emission maximum to the blue or red region: to 530 nm (yellow-green)
by 1 and 2, 615 nm (orange) by 3, and 495 nm (blue-green) by 4. The structure and the optical properties of the complexes
were determined by density-functional-theory quantum-chemical calculations. The theoretical spectra agree well with the experimental
photoluminescence spectra. |
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