Russian Journal of General Chemistry

, Volume 86, Issue 5, pp 1054–1063

Absorption and luminescence spectra of 5-aryl-3-methyl-1,2,4-oxadiazoles and their chelate complexes with Zinc(II) and copper(II)

  • I. E. Mikhailov
  • N. I. Vikrishchuk
  • L. D. Popov
  • G. A. Dushenko
  • A. D. Beldovskaya
  • Yu. V. Revinskii
  • V. I. Minkin
Article

DOI: 10.1134/S1070363216050121

Cite this article as:
Mikhailov, I.E., Vikrishchuk, N.I., Popov, L.D. et al. Russ J Gen Chem (2016) 86: 1054. doi:10.1134/S1070363216050121

Abstract

5-(2-Hydroxyphenyl)-3-methyl-1,2,4-oxadiazole and its O-methyl and O-acyl derivatives, as well as zinc(II) and copper(II) chelates, were synthesized. All these compounds showed luminescence with the emission maxima ranging from λ = 332 to 490 nm, but only 5-(2-methoxyphenyl)- and 5-(2-acetoxyphenyl)-3-methyl-1,2,4-oxadiazoles and zinc(II) complex of 5-(2-hydroxyphenyl)-3-methyl-1,2,4-oxadiazole were characterized by high luminescence quantum yield (φ = 0.308–0.452, 0.089–0.153, and 0.115–0.334, respectively). Stable conformers of 5-(2-hydroxyphenyl)-3-methyl-1,2,4-oxadiazole with different structures of the coordination entity were identified by DFT quantum chemical calculations.

Keywords

5-aryl-3-methyl-1,2,4-oxadiazoles electronic absorption and luminescence spectra luminescence quantum yield quantum chemical calculations 

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • I. E. Mikhailov
    • 1
    • 2
  • N. I. Vikrishchuk
    • 3
  • L. D. Popov
    • 3
  • G. A. Dushenko
    • 1
    • 2
  • A. D. Beldovskaya
    • 4
  • Yu. V. Revinskii
    • 1
  • V. I. Minkin
    • 2
  1. 1.Southern Scientific CenterRussian Academy of SciencesRostov-on-DonRussia
  2. 2.Research Institute of Physical and Organic ChemistrySouthern Federal UniversityRostov-on-DonRussia
  3. 3.Southern Federal UniversityRostov-on-DonRussia
  4. 4.Institute of Arid Zones, Southern Scientific CenterRussian Academy of SciencesRostov-on-DonRussia

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