An unexpected dinuclear copper(II) complex, [Cu2(L2)2] (H2L2 = 4-methoxysalicylaldehyde-O-(2-hydroxyethyl)oxime), has been synthesized through the complexation of Cu(OAc)2·H2O with an asymmetrical salamo-type compound 5-methoxy-6-hydroxy-2,2-[ethylenedioxybis(nitrilomethylidyne)]diphenol (H3L1). The catalysis of Cu(II) ions results in the unexpected cleavage of one of the N-O bonds in the ligand H3L1, giving a novel dialkoxo-bridged dinuclear Cu(II) complex possessing a Cu-O-Cu-O four membered ring core instead of the usually desired salamo-type ligand Cu-N2O2 mononuclear complex.
通过 Cu(OAc)2-
H2O 与 5-甲氧基-6-羟基-2,2-[亚乙二氧基双(次氮基亚甲基)]二
苯酚 (H3L1) 的不对称萨拉莫型化合物的络合,合成了一种意想不到的双核
铜(II)配合物 [Cu2(
L2)2](H2
L2 = 4-甲氧基
水杨醛-O-(2-羟乙基)
肟)。在 Cu(II) 离子的催化作用下,
配体 H3L1 中的一个 N-O 键发生了意外的裂解,从而产生了一种新型的二酮桥双核 Cu(II) 复合物,它具有一个 Cu-O-Cu-O 四元环核心,而不是通常所需的萨拉莫型
配体 Cu-
N2O2 单核复合物。