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Abstract <p>The reactions of nickel(II) with azomercaptophenols [HAMPs, H<sub>2</sub>L: 1-(5-chloro-2-pyridylazo)-2-hydroxy-4-mercaptophenol (CPMP) and 1-(5-bromo-2-pyridylazo)-2-hydroxy-4-mercaptophenol (BPMP)] and phenanthroline (Phen) were studied by the extraction-photometric method. The HAMPs were characterized with IR and NMR spectroscopy. The influence of aqueous phase pH on the formation of [Ni(II)L<sub>2</sub>](Phen) complexes and thermal decomposition was studied. The developed extraction-photometric method was used to determine nickel in wastewater, oil samples and oil products.</p>

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Mixed-Ligand Nickel(II) Complexes with 1-[5-Chloro(bromo)-2-pyridylazo]-2-hydroxy-4-mercaptophenol and Phenanthroline: Synthesis, Optical Properties, Thermal Behavior and Their Applications

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • A. Z. Zalov,
  • Z. G. Asgarova,
  • U. B. Abasguliyeva,
  • E. G. Shirinov,
  • P. F. Huseynova,
  • P. S. Safarova

摘要

Abstract

The reactions of nickel(II) with azomercaptophenols [HAMPs, H2L: 1-(5-chloro-2-pyridylazo)-2-hydroxy-4-mercaptophenol (CPMP) and 1-(5-bromo-2-pyridylazo)-2-hydroxy-4-mercaptophenol (BPMP)] and phenanthroline (Phen) were studied by the extraction-photometric method. The HAMPs were characterized with IR and NMR spectroscopy. The influence of aqueous phase pH on the formation of [Ni(II)L2](Phen) complexes and thermal decomposition was studied. The developed extraction-photometric method was used to determine nickel in wastewater, oil samples and oil products.