Synthesis,characterization and photoluminescence of aluminum N-aryloxo functionalized β-ketoiminate complexes

• 来源期刊: 科学通报(英文版)
• 学科: 化学
• 年，卷（期）: 2011,（14）
• 页码范围: 1482-1486
• 页数: 5页
• 分类号: O627.3
• 语种: 中文

摘要

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,L 1 H 2;R=tert-butyl,L 2 H 2) ligands reacted with AlEt 3 in tetrahydrofuran to give the aluminum complexes (L 1 AlEt) 2 (1) and (L 2 AlEt) 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.