Synthesis and crystal structure of new layered BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} orthoborates

Journal Article · Sat May 15 04:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.03.005· OSTI ID:21372611

Bakakin, Vladimir V ^[1]; Kokh, Aleksandr E; Kononova, Nadezhda G ^[2]; Svetlyakova, Tatyana N ^[2]; Kokh, Konstantin A ^[2]; Drebushchak, Tatyana N ^[3]

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1. Institute of Inorganic Chemistry RAS, 3, Lavrentieva avenue, 630090 Novosibirsk (Russian Federation)
2. Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation)
3. Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation)

Crystals of two new layered BaNaSc(BO{sub 3}){sub 2} (I) and BaNaY(BO{sub 3}){sub 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-bar, a=5.23944(12) and 5.3338(2) A, and c=34.5919(11) and 35.8303(19) A for I and II, respectively, Z=6. The distinctive feature of the structure is the close-packed composite anion-cation (Ba,Na)(BO{sub 3}) layers. The layers are combined into the base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, 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. - Graphical abstract: The distinctive feature of new orthoborate crystals BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} is the combination of base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, where M is Sc or Y.

• OSTI ID: 21372611
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 5 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ANIONS
BARIUM COMPOUNDS
BARIUM IONS
BORATES
BORON COMPOUNDS
CATIONS
CHARGED PARTICLES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALLIZATION
CRYSTALS
IONS
LAYERS
MONOCRYSTALS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SCANDIUM COMPOUNDS
SODIUM COMPOUNDS
SODIUM IONS
SPACE GROUPS
SYMMETRY GROUPS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRIGONAL LATTICES