Synthesis and crystal structure of a new modification of sodium tetrahydroxyborate NaB(OH)4

Synthesis and crystal structure of a new modification of sodium tetrahydroxyborate NaB(OH)4

A new polymorphic modification of sodium tetrahydroxyborate NaB(OH) 4 is synthesized and its crystal structure is determined. The compound crystallizes in symmetry space group P 2 1 2 1 2 1 with the unit cell parameters a = 5.323(5) Å, b = 9.496(5) Å, and c = 6.596(5) Å. The discrepancy factor for 5...

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Veröffentlicht in:Glass physics and chemistry 2009-06, Vol.35 (3), p.308-312
Hauptverfasser: Lapshin, A. E., Medvedev, E. F., Polyakova, I. G., Shepelev, Yu. F.
Format: Artikel
Sprache:eng
Schlagworte:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Crystal structure
Glass
Materials Science
Minerals
Natural Materials
Physical Chemistry
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Zusammenfassung:A new polymorphic modification of sodium tetrahydroxyborate NaB(OH) 4 is synthesized and its crystal structure is determined. The compound crystallizes in symmetry space group P 2 1 2 1 2 1 with the unit cell parameters a = 5.323(5) Å, b = 9.496(5) Å, and c = 6.596(5) Å. The discrepancy factor for 511 symmetrically nonequivalent reflections is R = 0.0188. Layers that are formed by boron tetrahedra, aligned parallel to the (010) planes, and alternate with layers of sodium cations can be distinguished in the structure.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659609030110