1—水杨叉氨基—2—丙醇锰(Ⅳ)配合物的合成和表征

Synthesis and characterization of manganese (IV) complex with l-salicylideneamino-2-propanol

已知绿色植物的光合放氧过程和一种与类囊体膜结合在一起的含锰放氧复合物(Oxygen Evolving Complex)有关,曾有人提出各种放氧模型来说明其催化过程,这些模型几乎都涉及锰价态的循环变化,尤其是Mn(Ⅲ)和Mn(Ⅳ)。近十余年来对锰(Ⅲ)配合物的研究虽发展十分迅速,但对锰(Ⅳ)配合物的研究仍不多。1987年Kessissglou等曾分别以1-水杨叉氨-3-丙醇(H_2Salap)和1-水杨叉氨基-2-乙醇(H_2Salae)为配体在加碱条件下合成了锰(Ⅳ)配合物Mn(salap)2·3H_2O和Mn(salae)2·2H_2O等,本文以1-水杨叉氨基-2-丙醇(H_2salaip)为配体在不加碱的条件下合成了锰(Ⅳ)配合物Mn(Hsalaip)2(C_2H_3O_2)_2,并运用各种实验方法进行表征。

Manganese (1v) complex Mn(HSalaip)2(C2H3O2)2, where HSalaip- is the anion of 1-salicylideneamino-2-propanol, has been synthesized and characterized by using the elemental anlyses, valence determination, electronic conductivity, magnetic susceptibility, thermogravimetric analysis, cyclic voltammogram, infrared-arid electronic spectrum etc. The possible structure of the complex is suggested.