Synthesis,characterization and photoluminescence of aluminum <Emphasis Type="Italic">N</Emphasis>-aryloxo functionalized <Emphasis Type="Italic">β</Emphasis>-ketoiminate complexes |
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| Authors: | Tao Feng HongMei Peng YingMing Yao Yong Zhang Qi Shen YanXiang Cheng |
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| Institution: | (1) Faculty of Science, Zhejiang Forestry University, Linan, 311300, Zhejiang, China;(2) Department of Chemistry, Liaocheng University, Liaocheng, 252059, Shandong, China |
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| Abstract: | The synthesis, characterization and luminescent properties of aluminum complexes containing a dianionic N-aryloxo functionalized β-ketoiminate ligand are presented. 4-(2-Hydroxy-5-R-phenyl)imino-2-pentanone (R = Me, L1H2; R = tert-butyl, L2H2) ligands reacted with AlEt3 in tetrahydrofuran to give the aluminum complexes (L1AlEt)2 (1) and (L2AlEt)2 (2) in reasonable isolated yields. X-ray diffraction revealed that complexes 1 and 2 have solvent-free centrosymmetric dimeric structures, and each aluminum center has distorted trigonal bipyramidal geometry.
At room temperature, complexes 1 and 2 exhibit blue photoluminescence in acetonitrile with maximum emission wavelengths of 419 and 413 nm, respectively. |
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| Keywords: | aluminum β-ketoiminate ligand synthesis structure photoluminescence |
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