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Novel Cu(II), Ni(II), Zn(II), Cd(II), and Mg(II) complexes with a series of 2-arylhydrazono-1,3-dicarbonyl compounds. Synthesis, structure and spectroscopic characteristicsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 июля 2020 г.
- Авторы: Kovalchukova Olga V., Thi Ngoc Anh Vu, Utenyshev Andrey N., Stash Adam I., Ryabov Mikhail A., Tahan Rana Abdulila Abbas Al, Voronkova Violetta K., Bazan Leah V.
- Журнал: Polyhedron
- Том: 184
- Год издания: 2020
- Издательство: Pergamon Press
- Местоположение издательства: United States
- Первая страница: 114557
- Последняя страница: 114573
- DOI: 10.1016/j.poly.2020.114557
- Аннотация: A series of novel metal complexes of Cu(II), Ni(II), Zn(II), Cd(II), and Mg(II) with four N-heterocyclicderivatives of 2-arylhydrazono-1,3-dicarbonyl compounds were isolated and identified by FT IR, 1HNMR, EPR, and UV–Vis spectroscopy. The crystallographic data for two organic ligands as well as Mg(II) and Ni(II) complexes were obtained. It was indicated that the organic species exist in the form ofhydrazo-tautomers. The Ni complex is monomeric and is characterized by the tridentate coordinationof the ligand through a deprotonated N-atom of the hydrazo-fragment and two neighboring O-atomsof the carbonyl and deprotonated hydroxy-groups. In the case of the Mg complex the polymeric structureis observed with the additional coordination through the sulfamide group of the organic specie.Formation constants of the complexes in ethanol aqueous solutions were calculated and correlated withsome physical characteristics of the metal cations. Structures of yet unstudied metal complexes were proposedbased on quantum-chemical modeling at the DFT/B3LYP level.
- Добавил в систему: Сташ Адам Игаркович
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