希土高氯酸盐与N,N'—二(2—吡啶亚甲基)—1,2—乙二胺配合物的合成及性质研究

PREPARATION AND CHARACTERI ZATION OF THE COMPLEXES OF RARE EARTH PERCHLORATES WITH N,N'-BIS(2-PYRIDYLMETHYLENE)-1,2-ETHANEDIAMINE

自六十年代以来,希土离子与芳香胺及其衍生物的配合物研究受到人们的普遍重视。文献工作表明,N,N’-二(2-吡啶亚甲基)-1,2-乙二胺(简写为bpme)可与希土离子形成1:1型的配合物,但希土离子与该配体的1:2型固体配合物文献中尚未报道。为了探讨bpme与希土离子形成非1:1型配合物的可能性,我们在甲醇介质中合成出希土高氯酸盐与bpme的1:2型固体配合物,并对其性质进行了研究。

The solid complexes of rare earth perehlorates with N,N/-bis(2-pyridylmethylenc)-1,2-ethanediamine (bpme) having the formula of Ln(Cu14H14N4)2(ClO4)3 · nH2O (Ln - La-Nd, Sm-Er,Y; n=1,2) have been prepared in methanol. Their composition and properties have been studied by elemental analysis, IR and UV spectra, TG-DSC and molar conductance.