摘要:
Mono- and binuclear Zn(II)/Cd(II) pyridine-4-aldoxime and pyridine-4-amidoxime complexes, [Zn(CH3COO)(2)(4-pYao)(2)] (1), [Zn(CH3COO)(2)(4-Pyamo)(2)] (2), [Cd-2(CH3COO)(4)(4-Pyao)(4)]center dot 4H(2)O (3), [Cd-2(CH3COO)(4)(4-pyamo)(4)]center dot 2DMF (4) and [Cd(CH3COO)(2)(4-Pyao)(3)]center dot 3H(2)O (5) (4-Pyao = pyridine-4-aldoxime; 4-pyamo = pyridine-4-amidoxime), were synthesized and characterized by elemental analysis, IR spectroscopy and X-ray structure determination. The mononuclear compounds 1 and 2 contain two, while compound 5 contains three neutral pyridine-4-aldoxime ligands coordinated to the metal center through the N-pyridyl atom. The acetate anions coordinate in monodentate (1, 2), bidentate (3-5) and bidentate-bridging (3,4) modes. Compounds 2, 3 and 5 display blue luminescence upon excitation with ultraviolet light. (C) 2014 Elsevier Ltd. All rights reserved.