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A binuclear silver(I) perchlorate macrocycle based on 2,5-bis[(E)-(3-pyridyl)methylene]cyclopentanone: Crystal structure and solution behaviorстатья
Статья опубликована в высокорейтинговом журнале
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: Aly Aref A.M., Vatsadze Sergey Z., Chernikov Aleksey V., Walfort Bernhard, Rueffer Tobias, Lang Heinrich
- Журнал: Polyhedron
- Том: 26
- Номер: 14
- Год издания: 2007
- Издательство: Pergamon Press
- Местоположение издательства: United States
- Первая страница: 3925
- Последняя страница: 3929
- DOI: 10.1016/j.poly.2007.04.045
- Аннотация: The homobinuclear complex [Ag(MeC N)(OClO3)(mu-L)](2) (L = 2,5-bis[(E)-(3-pyridyl)methylene]cyclopentanone) (3) has been prepared by the diffusion-controlled reaction of [AgClO4] (1) dissolved in acetonitrile with equimolar amounts of L (2) in chloroform. The coordination complex 3 was characterized by single-crystal X-ray diffraction studies, showing that in the solid state a 26-membered disilver macrocycle is formed. The four coordination sites at the silver metal center are occupied by two nitrogen donor atoms of neighboring ligands, one nitrogen donor atom of an acetonitrile solvent molecule and an oxygen donor atom from a weakly-coordinated OClO3 counter-anion. During a 6 months period compound 3 in the solid state does not undergo any visible changes upon action of ambient light (NMR check), whilst dimethylsulfoxide (DMSO) solutions of 3 on exposure to sunlight undergo a rapid (ca. 1 day) photochemical transformation, namely trans/cis-isomerization and [2+2] cycloaddition reactions. This phenomenon is explained by the dissociation of 3 to the starting components 1 and 2 in DMSO and acetonitrile solutions, as has been demonstrated by H-1 NMR spectroscopy and ESI-TOF mass-spectrometry. (c) 2007 Elsevier Ltd. All rights reserved.
- Добавил в систему: Вацадзе Сергей Зурабович