Absorption and luminescence spectra of 5-aryl-3-methyl-1,2,4-oxadiazoles and their chelate complexes with Zinc(II) and copper(II)
- Authors: Mikhailov I.E.1,2, Vikrishchuk N.I.3, Popov L.D.3, Dushenko G.A.1,2, Beldovskaya A.D.4, Revinskii Y.V.1, Minkin V.I.2
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Affiliations:
- Southern Scientific Center
- Research Institute of Physical and Organic Chemistry
- Southern Federal University
- Institute of Arid Zones, Southern Scientific Center
- Issue: Vol 86, No 5 (2016)
- Pages: 1054-1063
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/214939
- DOI: https://doi.org/10.1134/S1070363216050121
- ID: 214939
Cite item
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.
About the authors
I. E. Mikhailov
Southern Scientific Center; Research Institute of Physical and Organic Chemistry
Author for correspondence.
Email: mikhail@ipoc.rsu.ru
Russian Federation, ul. Chekhova 41, Rostov-on-Don, 344006; pr. Stachki 194/2, Rostov-on-Don, 344090
N. I. Vikrishchuk
Southern Federal University
Email: mikhail@ipoc.rsu.ru
Russian Federation, Bol’shaya Sadovaya ul. 105/42, Rostov-on-Don, 344006
L. D. Popov
Southern Federal University
Email: mikhail@ipoc.rsu.ru
Russian Federation, Bol’shaya Sadovaya ul. 105/42, Rostov-on-Don, 344006
G. A. Dushenko
Southern Scientific Center; Research Institute of Physical and Organic Chemistry
Email: mikhail@ipoc.rsu.ru
Russian Federation, ul. Chekhova 41, Rostov-on-Don, 344006; pr. Stachki 194/2, Rostov-on-Don, 344090
A. D. Beldovskaya
Institute of Arid Zones, Southern Scientific Center
Email: mikhail@ipoc.rsu.ru
Russian Federation, ul. Chekhova 41, Rostov-on-Don, 344006
Yu. V. Revinskii
Southern Scientific Center
Email: mikhail@ipoc.rsu.ru
Russian Federation, ul. Chekhova 41, Rostov-on-Don, 344006
V. I. Minkin
Research Institute of Physical and Organic Chemistry
Email: mikhail@ipoc.rsu.ru
Russian Federation, pr. Stachki 194/2, Rostov-on-Don, 344090