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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Feng, T., Peng, H., Yao, Y. et al. Synthesis, characterization and photoluminescence of aluminum N-aryloxo functionalized β-ketoiminate complexes. Chin. Sci. Bull. 56, 1471–1475 (2011). https://doi.org/10.1007/s11434-011-4458-3
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DOI: https://doi.org/10.1007/s11434-011-4458-3