Direct chemical and electrochemical syntheses of coordination compounds of benzazolyl azo ligands

作者：Burlov Anatolii S; Antsyshkina Alla S; Sadikov Georgii G; Koshchienko Yurii V; Divaeva Ludmila N; Mashchenko Sergei A; Uraev Ali I; Garnovskii Dmitrii A; Vasilchenko Igor S; Vlasenko Valery G; Zubavichus Yan V; Borodkin Gennadii S; Kharisov Boris I^*; Hernandez Garcia Tomas C; Sergienko Vladimir S; Garnovskii Alexander D

来源：Journal of Coordination Chemistry, 2010, 63(6): 917-930.

DOI：10.1080/00958971003690421

• Benzazolyl azo ligands
• Direct electrochemical synthesis
• EXAFS
• X-ray diffraction
• Octahedral complexes

The chelates of 2-hydroxy(aminophenylnaphthyl)-azo-1-alkylbenzimidazoles were obtained from electrochemical (anodic dissolution of zero-valent d-metals) and chemical (from acetates of the same metals) syntheses in methanol. The EXAFS and X-ray single crystal diffraction data revealed the existence of octahedral nickel, zinc, and cadmium complexes containing four five-membered metallocycles with the N(4)N(2) or N(6) 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.

• 出版日期2010