Complexation equilibria between 1-alkyl-2-benzimidazolylaldoximes and nickel(II) and cobalt(II) ions and their application in analytical chemistry

Authors
Chernov'yants, MS Kuplevatskaya, NV Shcherbakov, IN Anisimova, VA
Citation
Ms. Chernov'Yants et al., Complexation equilibria between 1-alkyl-2-benzimidazolylaldoximes and nickel(II) and cobalt(II) ions and their application in analytical chemistry, J ANALYT CH, 54(2), 1999, pp. 122-126
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
54
Issue
2
Year of publication
1999
Pages
122 - 126
Database
ISI
SICI code
1061-9348(199902)54:2<122:CEB1AN>2.0.ZU;2-H
Abstract
A series of 1-alkyl-2-benzimidazolylaldoximes was synthesized. Total energi es of possible conformers and energetically most favorable ligand structure s were determined by semiempirical quantum-chemical calculations using the PM3 method. Complexation equilibria between aldoximes and Ni(II) and Co(II) ions were studied, and a method for the calculation of stability constants of the MHL2+ and MHL2+ chelates is proposed. Analytical characteristics of the above complexes and their ion pairs with eosin were determined.