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Nanostructuring in the process of the formation of mixed-anion compounds: Rare-earth borogermanates, germanophosphates, and borotungstatesстатья
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: Bandurkin G.A., Chudinova N.N., Lysanova G.V., Palkina K.K., Murashova E.V., Krut'ko V.A., Balagina G.M.
- Журнал: Russian Journal of Inorganic Chemistry
- Том: 51
- Номер: 2
- Год издания: 2006
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 292
- Последняя страница: 305
- DOI: 10.1134/S0036023606020185
- Аннотация: Specific features of the textures (the preferred orientation of the nanometer building blocks) in the structures of mixed-anion compounds-rare-earth borogermanates, germanophosphates, and borotungstates that arise from the acid-base interaction in the Ln(2)O(3)-B2O3-GeO2, Ln(2)O(3)-GeO2-P2O5, and Ln(2)O(3)-B2O3-WO3 systems (Ln = La-Gd)-have been studied. Based on characteristic texture traits, the mixed-anion compounds of early rare-earth elements can be divided into three groups: (i) Ln(2)O(3): ExOy > 1, (ii) Ln(2)O(3): ExOy = 1, and (iii) Ln(2)O(3): ExOy < 1. Because of the dominant structural effect of the basic oxide Ln(2)O(3) in the compounds of the first group, the structures of Nd14O8(BO3)(6)(GeO4)(2) and Pr11O10(GeO4)(PO4)(3) are composed of infinite [LnO(n)] bands and layers and discrete groups [EOm] located in the interband and interlayer spaces. The dominant structural effect of the acid oxides [ExOy] in the compounds of the third group leads to the appearance of ring textures composed of [LnO(n)], as well as to the appearance of chains and networks composed of [EOm], in the structures of Ln(BGeO5) and Ln(BO2)(WO4).
- Добавил в систему: Мурашова Елена Викторовна