Transition metal (NiII, CoII, and CuII) complexes with 1,2-bis[2-(3-pyridylmethylideneamino)phenylthio]ethane (1) and 1,2-bis[2-(4-pyridylmethylideneamino)phenylthio]ethane (2) were synthesized for the first time by slow diffusion of solutions of compounds 1 or 2 in CH2Cl2 into solutions of MX2 · nH2O (M = Ni, Co, or Cu; X = Cl or NO3; n = 2 or 6) in ethanol. The reactions with CoII and CuII chlorides afford complexes of composition M(L)Cl2 (L = 1 or 2). The reactions of compound 1 with NiII salts produce complexes with 1,2-bis(2-aminophenylthio)ethane. The molecular structure of dinitrato[1,2-bis(2-aminophenylthio)ethane]nickel(ii) was confirmed by X-ray diffraction. The ligands and the complexes were investigated by cyclic voltammetry and rotating disk electrode voltammetry. The initial reduction of the complexes proceeds at the metal atom. The oxidation of the chlorine-containing complexes proceeds at the coordinated chloride anion.
通过将化合物 1 或 2 在
CH2Cl2 中的溶液缓慢扩散到 MX2 - nH2O(M = Ni、Co 或 Cu,X = Cl 或
NO3,n = 2 或 6)在
乙醇中的溶液中,首次合成了过渡
金属(NiII、CoII 和 CuII)与 1,2-双[2-(3-
吡啶基亚甲基
氨基)苯
硫基]
乙烷(1)和 1,2-双[2-(4-
吡啶基亚甲基
氨基)苯
硫基]
乙烷(2)的配合物;X = Cl 或 ;n = 2 或 6)在
乙醇中的溶液。与 CoII 和 CuII
氯化物的反应可生成成分为 M(L)Cl2 (L = 1 或 2)的络合物。化合物 1 与 NiII 盐反应会产生 1,2-双(2-
氨基苯
硫基)
乙烷络合物。二硝基[1,2-双(2-
氨基苯
硫基)
乙烷]
镍(ii)的分子结构通过 X 射线衍射得到了证实。
配体和配合物通过循环伏安法和旋转盘电极伏安法进行了研究。配合物的初始还原是在
金属原子上进行的。含
氯络合物的氧化作用在配位的
氯阴离子上进行。