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Mikhailov I. E. Vikrishchuk N. I. Popov L. D. Beldovskaya A. D. Dushenko G. A. Revinskii Yu. V. Kurbatov S. V. 《Russian Journal of General Chemistry》2017,87(3):575-578
The interaction of 2,3-dimethyl-4-oxo-1,3-benzoxazinium and 2-[β-(4-bromophenylvinyl)]-3-methyl-4-oxo-1,3-benzoxazinium perchlorates with hydrazine hydrate has afforded the corresponding triazoles that have been used as ligands for the synthesis of zinc complexes L2Zn. Luminescent properties of the prepared complexes have been studied.
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I. E. Mikhailov N. I. Vikrishchuk L. D. Popov G. A. Dushenko A. D. Beldovskaya Yu. V. Revinskii V. I. Minkin 《Russian Journal of General Chemistry》2016,86(5):1054-1063
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. 相似文献
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Mikhailov I. E. Popov L. D. Vikrischuk N. I. Beldovskaya A. D. Dushenko G. A. Revinskii Yu. V. Minkin V. I. 《Russian Journal of General Chemistry》2017,87(1):156-158
Russian Journal of General Chemistry - The interaction of 4-oxo-1,3-benzoxazinium perchlorate with 2-pyridylhydrazine has given 5-(2-hydroxyphenyl)-3-ethyl-1-(pyridin-2-yl)-1Н-1,2,4-triazole... 相似文献
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A. D. Beldovskaya G. A. Dushenko N. I. Vikrishchuk L. D. Popov Yu. V. Revinskii I. E. Mikhailov 《Russian Journal of General Chemistry》2013,83(11):2075-2083
Novel derivatives of 1,2,4-triazol with benzthiazole fragment have been prepared, including Cu(II) and Be complexes. Their structure and spectral luminescent properties have been investigated. With ohydroxyphenylbenzthiazolyl-1,2,4-triazole as an example, the density functional theory has been applied to find the stable conformers with different structures of coordination nodes, stabilized by intramolecular hydrogen bonds between hydroxyl group hydrogen and either triazole of benzthiazole nitrogen. 相似文献
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I. E. Mikhailov N. I. Vikrishchuk L. D. Popov A. D. Beldovskaya G. A. Dushenko Yu. V. Revinskii V. I. Minkin 《Doklady Chemistry》2017,472(2):30-35
It has been demonstrated by 13C NMR and quantum-chemical calculations that alkylation of 5-(2-hydroxyphenyl)-3-methyl(vinylphenyl)-1H-1,2,4-triazoles with dialkyl sulfates in aqueous DMSO in the presence of alkali occurs exclusively in the 2-position of the triazole ring to give 3-(2-hydroxyphenyl)-1,5-dialkyl(alkylvinylphenyl)-1H-1,2,4-triazoles. Emission spectra of these compounds show two weak bands (λ max fl = 317–346 and 430–447 nm, φ = 0.002–0.007), whereas their zinc complexes emit in the violet range of the visible spectrum (λ max fl = 373–377 nm, φ = 0.20–0.25). 相似文献
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