Direct chemical and electrochemical syntheses of coordination compounds of benzazolyl azo ligands
作者:Anatolii S. Burlov、Alla S. Antsyshkina、Georgii G. Sadikov、Yurii V. Koshchienko、Ludmila N. Divaeva、Sergei A. Mashchenko、Ali I. Uraev、Dmitrii A. Garnovskii、Igor S. Vasilchenko、Valery G. Vlasenko、Yan V. Zubavichus、Gennadii S. Borodkin、Boris I. Kharisov、Tomás C. Hernández García、Vladimir S. Sergienko、Alexander D. Garnovskii
DOI:10.1080/00958971003690421
日期:2010.3.20
crystal diffraction data revealed the existence of octahedral nickel, zinc, and cadmium complexes containing four five-membered metallocycles with the N4О2 or N6 ligand environments. The formation of five-membered coordination units, non-typical for azo ligands, is explained on the basis of inner-chelate competitive metal binding of ambidentate ligand systems.
2-羟基(氨基苯基萘基)-偶氮-1-烷基苯并咪唑的螯合物通过电化学(零价d-金属的阳极溶解)和化学(来自相同金属的乙酸盐)在甲醇中合成获得。EXAFS 和 X 射线单晶衍射数据揭示了八面体镍、锌和镉配合物的存在,该配合物含有四个五元金属环,具有 N4О2 或 N6 配体环境。偶氮配体的非典型五元配位单元的形成是基于双齿配体系统的内螯合竞争性金属结合来解释的。