含硫氮杂套索冠醚的合成及应用研究

合成了一系列分别带有香豆素基和α—萘胺基套索冠醚，用紫外光谱法测定了 这些套索冠醚与Cu^2+，Pb^2+，Cd^2+，Hg^2+，Cr^3+，Ni^2+，Mg^2+，Zn^2+金属 离子的络合作用，及所形成络合物的λmax及摩尔消光系数ε，发现其中一些化合 物对Pb^2+，Hg^2+，Cr^3+金属离子具有较高的灵敏度和选择性．

Synthesis of diazadithiacrown ethers containing two fluorescent side-arms and their complexation with metal ions

Diazadithiacrown ethers containing two fluorescent side-arms were synthesized, which were used as fluorescent indecator for the following toxic ions in waste water. These crown ethers are 18-crown-6 derivatives with two coumarinyl and naphthalidinyl side-arms, including 3Ac, 3Ad, 3Ae, 3Af, 3Bc, 3Bd, 3Be, 3Bf, 4Bc, 4Be and 4Bf. The shifts, the λ_(max) and the mole absorption coefficient ε of these complexes with Cu~(2+), Pb~(2+), Cd~(2+), Hg~(2+), Cr~(3+), Ni~ (2+), Mg~(2+) and Zn~(2+) ions were measured by UV spectrometry. Some of these ligands can form complexes selectively with Pb~(2+), Hg~(2+) and Cr~(3+).