Инд. авторы: | Seryotkin Y.V., Bakakin V.V., Kokh A.E., Kononova N.G., Svetlyakova T.N., Kokh K.A., Drebushchak T.N. |
Заглавие: | Synthesis and crystal structure of new layered BaNaSc(BO3)2 and BaNaY(BO3)2 orthoborates |
Библ. ссылка: | Seryotkin Y.V., Bakakin V.V., Kokh A.E., Kononova N.G., Svetlyakova T.N., Kokh K.A., Drebushchak T.N. Synthesis and crystal structure of new layered BaNaSc(BO3)2 and BaNaY(BO3)2 orthoborates // Journal of Solid State Chemistry. - 2010. - Vol.183. - Iss. 5. - P.1200-1204. - ISSN 0022-4596. - EISSN 1095-726X. |
Внешние системы: | DOI: 10.1016/j.jssc.2010.03.005; SCOPUS: 2-s2.0-77953133072; |
Реферат: | eng: Crystals of two new layered BaNaSc(BO3)2 (I) and BaNaY(BO3)2 (II) orthoborates are grown from the melt-solution by the spontaneous crystallization onto the platinum loop. Single crystal X-ray analysis showed that the compounds are isostructural with the space group R3-, a=5.23944(12) and 5.3338(2) Å, and c=34.5919(11) and 35.8303(19) Å for I and II, respectively, Z=6. The distinctive feature of the structure is the close-packed composite anion-cation (Ba,Na)(BO3) layers. The layers are combined into the base building packages of two types: {M3+[Ba2+(BO3)3-]2}+ and {M3+[Na+(BO3)3-]2}-, where M is Sc or Y. Neutral-charge two-package (four-layer) blocks are stacked by the rhombohedral principle into twelve layers of the cubic packing. © 2010 Elsevier Inc. All rights reserved.
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Ключевые слова: | Melt-solution crystallization; Single crystal X-ray analysis; Unilateral coordination of Na; Composite anions; Cubic packing; Distinctive features; Isostructural; Neutral-charge; Ortho-borates; Crystal structure; X rays; X ray analysis; Layered orthoborates; Scandium; Platinum; Crystallization; Coordination reactions; Barium compounds; Barium; Synthesis and crystal structure; Spontaneous crystallization; Space Groups; Solution crystallization; Single crystal X-ray analysis; Single crystals; |
Издано: | 2010 |
Физ. характеристика: | с.1200-1204 |