二茂铁硫杂冠醚配合性能的研究

STUDIES ON COMPLEXING PROPERTIES OF FERROCENYLPOLYTHIA CROWN ETHERS

本文研究了两种二茂铁硫杂冠醚配体(Ⅰ:1-二茂铁2,14-二硫-14-冠-5;Ⅱ:1-二茂铁2,8,14-三硫-14-冠-5;)对Hg^(2+)、Co^(2+)、Pb^(2+)、Cu^(2+)、Zn^(2+)的配合性能。结果表明,配体Ⅱ的配合能力高于配体Ⅰ,但Ⅰ和Ⅱ的配合能力都遵从Hg^(2+)>Cu^(2+)>Zn^(2+)>Pb^(2+)>Cd^(2+)的顺序。此外,还制备了配体Ⅰ与Cu^(2+)、Ag^+、Au^(3+)、Zn^(2+)、Cd^(2+)、Hg^(2+)的固体配合物,并根据元素分析、红外光潜和差热-热重分析结果确定了各配合物的组成。

In this paper, the complexing properties of two new ferrocenylpolythia crown ether (Ⅰ: 1-ferrocenyl-2, 14-dithia-14-Crown-5; Ⅱ: 1-ferrocenyl-2,8,14-trithia-14-Crown-5)for Hg^(2+)、Cd^(2+)、Pb^(2+)、Cu^(2+)、Zn^(2+) have been studied. The experimental results show that the Complexing ability of Ⅱ is higher than that of Ⅰ, and the complexation efficiency of two ligands to wards these ions is in the following order: Hg^(2+)>Cu^(2+)>Zn^(2+)>Pb^(2+)>Cd^(2+). In addition, the solid complexes of Ⅰ with Cu^(2+), Ag^+, Au^(3+), Zn^(2+), Cd^(2+), Hg^(2+) are prepared. Their composition is confirmed by elemental analyses, IR and DTA-TG.