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Crystal structure of the Nd, Gd, and Dy sandwich complexes involving 8-membered macrocyclic phenylsiloxanolate ligandsстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 марта 2017 г.
- Авторы: Igonin V.A., Lindeman S.V., Struchkov Yu T., Molodtsova Yu A., Pozdnyakova Ya A., Shchegolikhina O.I., Zhdanov A.A.
- Журнал: Russian Chemical Bulletin
- Том: 42
- Номер: 1
- Год издания: 1993
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 176
- Последняя страница: 181
- DOI: 10.1007/bf00700004
- Аннотация: An X-ray structural investigation of the interaction products of anhydrous trivalent neodymium, gadolynium, and dysprosium chlorides with sodium phenylsiloxanolate was carried out. The synthesized compounds with the general formula Na6[PhSiO2]8M4(µ4-O)[O2SiPh]8 · 10EtOH · 8H2O (M = Nd, Gd, Dy) were found to be isomorphous isostructural sandwich complexes. The macrocyclic octaphenyloctasiloxanolate ligands in the complexes have anall-cis-configuration and are arranged in co-axial antiparallel pairs and coordinate the square planar groups of the four Nd3+, Gd3+, or Dy3+ ions stabilized by an additional central µ4-bridging O2- ligand. Six Na+ counterions form the outer coordination sphere of the complexes such that four of them coordinate the siloxane macrocycle O atoms in pairs in analogy with crown-ether complexes.
- Добавил в систему: Щеголихина Ольга Ивановна