Comparative investigation of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with dibenzo-substituted macrocyclic ligands incorporating both symmetrically and unsymmetrically arranged N, O and S donors: synthetic, solution and X-ray studies
作者:Ioana M. Vasilescu、David J. Bourne、Jack K. Clegg、Feng Li、Leonard F. Lindoy、George V. Meehan
DOI:10.1080/10610278.2012.688130
日期:2012.8.1
A comparison of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with a matrix of 18, 17-membered, dibenzo-substituted macrocyclic ligands (1–18) incorporating nitrogen, oxygen and/or sulfur heteroatom sites that share the same carbon backbone is reported. Potentiometric log K data for complexes of these metals with 5, 6, 8 and 9 incorporating unsymmetric arrangements of their donor sets were obtained
Zn(II)、Cd(II)、Ag(I) 和 Pb(II) 与 18、17 元、二苯并取代的大环配体 (1-18) 结合氮、氧和/或共享相同碳骨架的硫杂原子位点被报道。获得了这些金属与 5、6、8 和 9 的配合物的电位 log K 数据,这些配合物包含它们的供体组的不对称排列,并将结果与先前确定的形成上述基质的其余对称和不对称配体配合物的稳定性数据进行比较。讨论了各自 log K 值的相对大小背后的结构 - 功能关系,重点强调了供体原子组和供体原子序列对所得复合物性质的影响。