The Spectroscopic and theoretical investigations of complex formation of (3E,3'E)-7,7'-(carbonylbis(azanediyl))bis(3-(2-(2-hydroxyphenyl)hydrazono)-4-oxo-3,4-dihydronaphthalene-2-sulfonic acid) with metal cations

  • Olga Kovalchukova Peoples' Friendship University of Russia
  • Mikhael Ryabov Peoples' Friendship university of Russia
  • Alexandra Obmenennaya A.N. Kosygin Russian State University (Technology. Design. Art)
  • Nikolai Popandopulo A.N. Kosygin Russian State University (Technology. Design. Art)
Keywords: Azodye, complex formation, UV-VIS spectroscopy, theoretical modeling, spatial and electronic structure


A novel azo-dye  was isolated by a diazo-coupling reaction and characterized by the elemental analysis, mass spectra, IR and UV-VIS spectroscopy. The processes of complex formation of H4L with some mono-, bis-, and trivalent metal cations were studied by spectrophotometric titration and theoretical modeling. The NBO effective charge calculations indicate a strong covalent character of the coordination bonds at complexation.


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Author Biography

Mikhael Ryabov, Peoples' Friendship university of Russia

Dr, Department of General Chemistry


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How to Cite
Kovalchukova, O., Ryabov, M., Obmenennaya, A., & Popandopulo, N. (2018). The Spectroscopic and theoretical investigations of complex formation of (3E,3’E)-7,7’-(carbonylbis(azanediyl))bis(3-(2-(2-hydroxyphenyl)hydrazono)-4-oxo-3,4-dihydronaphthalene-2-sulfonic acid) with metal cations. JOURNAL OF ADVANCES IN CHEMISTRY, 15(2), 6207-6217. Retrieved from

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