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以5,5’-亚甲基双水杨醛缩-2-(2-氨基苯胺基)-3-氰基-5-甲基噻吩希夫碱(L)和乙酸铜或乙酸镍为原料,合成了含噻吩双水杨醛希夫碱铜(Ⅱ)、镍(Ⅱ)配合物,用滴定分析、元素分析、红外光谱、紫外-可见光谱和热分析对配合物进行了组成和结构表征。该双核配合物的组成为[M_2L(H_2O)_2](M=Cu~(2+),Ni~(2+)),中心离子与来自配体的亚胺基氮原子、酚羟基氧原子和氨基氮原子以及来自配位水分子中的氧原子形成了4配位的双核对称希夫碱配合物,其在空气气氛中的热分解反应包括脱水、配体的氧化分解过程,最后残余物为CuO或NiO。
Starting from 5,5’-methylenebis salicylaldehyde-2- (2-aminoanilino) -3-cyano-5-methylthiophene Schiff base (L) and copper acetate or nickel acetate, The complexes of copper (Ⅱ) and nickel (Ⅱ) with thiophene-bis-salicylaldehyde Schiff base were synthesized and characterized by titration, elemental analysis, IR, UV-Vis and thermal analysis. The composition of the binuclear complex is [M_2L (H_2O) _2] (M = Cu ~ (2 +), Ni 2+), and the center ion is bonded to the imine nitrogen atom derived from the ligand, the phenolic hydroxyl oxygen atom and Amino nitrogen atoms and oxygen atoms from the coordination water form a 4-coordinate dinuclear symmetric Schiff base complex. The thermal decomposition reaction in air atmosphere includes dehydration, oxidative decomposition of ligand, and finally the residue is CuO or NiO.