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Synthesis and electrochemical study of complexes of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazolстатья
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: 18 июля 2013 г.
- Авторы: Beloglazkina E.K., Vatsadze S.Z., Majouga A.G., Frolova N.A., Romashkina R.B., Zyk N.V., Moiseeva A.A., Butin K.P.
- Журнал: Russian Chemical Bulletin
- Том: 54
- Номер: 12
- Год издания: 2005
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 2771
- Последняя страница: 2782
- DOI: 10.1007/s11172-006-0190-6
- Аннотация: New transition metal (Ni-II, Co-II, and Cu-II) complexes with 2-methylthio-5-(pyridylmetiiylidene)-3,5-dihydro-4H-imidazol-4-ones were synthesized by the reaction of 5-(alpha, beta-, or gamma-)pyridyl-substituted 2-methylthio-3,5-dihydro-4H-imidazol-4-ones with MCl2 (.) nH(2)O. In the complexes with alpha-Py-substituted ligands, the metal atom has a tetrahedral coordination environment and is coordinated by the nitrogen atoms of the pyridine and thiohydantoin rings and two chloride anions. The results of electronic spectroscopy and magnetic susceptibility measurements suggest that the complexes with the beta- and gamma-Py-substituted ligands have polymeric structures, and the metal atoms in these complexes are in an octahedral environment. The molecular and crystal structures of (COCl2)-Cl-II (L-1 is (5Z)-2-methylthio-3-phenyl-5-(alpha-pyridylmethylidene)-3,5-dihydro-4H-i midazol-4-one) and (CoLCl2)-L-II-Cl-2 (L-2 is (5Z)-3-methyl-2-metliyitliio-5-(alpha-pyridylmethylidene)-3,5-dihydro-4H -imidazol-4-one) were established by X-ray diffraction. Semiempirical quantum-chemical calculations were performed for 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-ones. The complexes, starting ligands, and metal chlorides were studied electrochemically. The mechanism of electrooxidation and electroreduction of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4-Himidazol-4-ones and their cobalt, nickel, and copper complexes was proposed.
- Добавил в систему: Мажуга Александр Георгиевич