摘要:
The syntheses of four four-coordinate zinc(II) complexes,[GRAPHICS]((ArN)-N-1=(HCArO)-O-2)(2)Zn (Ar-1 = 7-(2,4-Me-2)C9H4N, Ar-2 = C6H4 (2a); Ar-1 = 7-(2,4-Me-2)C9H4N, Ar-2 = 3,5-(Bu2C6H2)-Bu-t (2b); Ar-1 = 7-(2,4-Me-2)C9H4N, Ar-2 = 5-BrC6H3 (2c); Ar-1 = 7-(2,4-Me-2)C9H4N, Ar-2 = 3,5-Br2C6H2 (2d)) are described. Complexes 2a-2d were synthesized by the reaction of ZnEt2 with 2 equiv. of the corresponding ligand. Ligands 1a-1d and the corresponding zinc(II) complexes 2a-2d were characterized by elemental analysis, IR, H-1 and C-13 NMR spectroscopy. The molecular structure of complex 2b was determined by single crystal X-ray crystallography. Luminescent properties of the ligands 1a-1d and complexes 2a-2d in both solution and the solid state were studied. (C) 2007 Elsevier Ltd. All rights reserved.