L(4) and L(7). The complexes [Cd(NO3)2(L(5))], [Pb(L(7))](ClO4)2 x 1/2MeCN, [Pb(L(4))](ClO4)2 x MeCN, and [Cu(L(7))](ClO4)2 x 3/2MeNO2 were characterized by X-ray crystallography. The efficacy of L(1)-L(7) in competitive liquid-liquid metal ion extraction of Cu(II), Zn(II), Cd(II), Pb(II), Ag(I), and Hg(II) was assessed. In the absence of Hg(II), a clear extraction selectivity for Ag(I) was observed in
两个新的混合氮杂-
硫杂冕冠5-氮杂-2,8-二
硫杂[9]-(2,9)-1,10-
菲咯啉烷(L(4))和2,8-二氮杂5-
硫杂[9] -(2,9)-1,10-
菲咯啉烷(L(7))已合成并表征。研究了L(4)和L(7)对
金属离子Cu(II),Zn(II),Pb(II),Cd(II),Hg(II)和Ag(I)的配位行为(1)H NMR滴定法以固态方式在CD3CN / D2O 4:1(v / v)中通过电位法测定
水溶液。将获得的数据与可用于结构相似的混合供体大环
配体L(1)-L(3),L(5),L(6)的相同
金属离子配位行为的数据进行比较:所有这些都包含
菲咯啉亚基但在环的其余部分仅具有S / O / N(芳族)供体基团,因此
水溶性比L(4)和L(7)小。络合物[Cd(
NO3)2(L(5))],[Pb(L(7))](
ClO4)2 x 1 / 2MeCN,[Pb(L(4))]( )2 x MeCN和[Cu(L(7))]( )2