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A new approach to synthesis of layered fluorites containing molecular anions: Synthesis of Ln(2)O(2)CO(3), K(LnO)CO3, and Ln(2)O(2)CrO(4) via metathesis reactionsстатья
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: Charkin Dmitri O., Grischenko Roman O., Sadybekov Arman A., Goff Richard J., Lightfoot Philip
- Журнал: Inorganic Chemistry
- Том: 47
- Номер: 8
- Год издания: 2008
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 3065
- Последняя страница: 3071
- DOI: 10.1021/ic701558m
- Аннотация: A new synthetic approach is suggested for preparation of layered rare-earth oxide compounds containing [Ln(2)O(2)] slices and molecular anion sheets (CO32-, SO42-, and CrO42-). It is based on exchange reactions of rare-earth oxychlorides, [Ln(2)O(2)]Cl-2, and alkali carbonates, sulfates, or chromates. Five new rare-earth oxychromates [Ln(2)O(2)]CrO4 (Ln = Pr-Gd) have been prepared which adopt a new, probably layered, structure type. In addition, significantly easier and more efficient synthetic pathways were found to the known compounds [Ln(2)O(2)]K-2(CO3)(2) and [La2O2]CrO4. The structure of the latter compound has been determined from neutron powder diffraction data. Factors affecting reaction pathways and products are discussed, as well as prospects for applying the approach to more complex layered compounds.
- Добавил в систему: Чаркин Дмитрий Олегович