Solid State NMR Characterization of Individual Compounds and Solid Solutions Formed in Sc2O3-V2O 5-Nb2O5-Ta2O5 System Научная публикация
| Журнал |
Magnetic Resonance in Chemistry
ISSN: 0749-1581 , E-ISSN: 1097-458X |
||||
|---|---|---|---|---|---|
| Вых. Данные | Год: 2007, Том: 45, Номер: 11, Страницы: 962-970 Страниц : 9 DOI: 10.1002/mrc.2086 | ||||
| Ключевые слова | 51v; 45Sc, 93Nb, Bulk oxides, MAS, Niobates, SATRAS, Solid solutions, Solid state NMR, Vanadates | ||||
| Авторы |
|
||||
| Организации |
|
Информация о финансировании (1)
| 1 | Российский фонд фундаментальных исследований | 07-03-00695 |
Реферат:
In this study, 51V, 45Sc and 93Nb MAS NMR combined with satellite transition spectroscopy analysis were used to characterize the complex solid mixtures: VNb9(1−x)Ta9xO25, ScNb(1−x)TaxO4 and ScNb2(1−x)Ta2xVO9 (x = 0, 0.3, 0.5, 0.7, 1.0). This led us to describe the structures of Sc and V sites. The conclusions were based on accurate values for 51V quadrupole coupling and chemical shift tensors obtained with 51V MAS NMR/SATRAS for VNb9O25, VTa9O25 and ScVO4. The 45Sc NMR parameters have been obtained for Sc2O3, ScVO4, ScNbO4 and ScTaO4. On the basis of 45Sc NMR and data available from literature, the ranges of the 45Sc chemical shift have been established for ScO6 and ScO8. The gradual change of the 45Sc and 51V NMR parameters with x confirms the formation of solid solutions in the process of synthesis of VNb9(1−x)Ta9xO25 and ScNb(1−x)TaxO4, in contrast to ScNb2(1−x)Ta2xVO9. The cation sublattice of ScNb(1−x)TaxO4 is found to be in octahedral coordination. The V sites in VNb9(1−x)Ta9xO25 are present in the form of slightly distorted tetrahedra. The 93Nb NMR parameters have been obtained for VNb9O25.
Библиографическая ссылка:
Khabibulin D.
, Romanenko K.
, Zuev M.
, Lapina O.
Solid State NMR Characterization of Individual Compounds and Solid Solutions Formed in Sc2O3-V2O 5-Nb2O5-Ta2O5 System
Magnetic Resonance in Chemistry. 2007. V.45. N11. P.962-970. DOI: 10.1002/mrc.2086 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Solid State NMR Characterization of Individual Compounds and Solid Solutions Formed in Sc2O3-V2O 5-Nb2O5-Ta2O5 System
Magnetic Resonance in Chemistry. 2007. V.45. N11. P.962-970. DOI: 10.1002/mrc.2086 WOS Scopus РИНЦ CAPlusCA PMID OpenAlex
Даты:
| Поступила в редакцию: | 1 мая 2007 г. |
| Принята к публикации: | 20 авг. 2007 г. |
| Опубликована online: | 8 окт. 2007 г. |
| Опубликована в печати: | 1 нояб. 2007 г. |
Идентификаторы БД:
| Web of science: | WOS:000252666900009 |
| Scopus: | 2-s2.0-35748937329 |
| РИНЦ: | 13553496 |
| Chemical Abstracts: | 2007:1373818 |
| Chemical Abstracts (print): | 148:181560 |
| PMID (PubMed): | 17924354 |
| OpenAlex: | W2051855187 |