Abstract
Single crystals of a new ternary nitride, Ba5Si2N6, were synthesized by slow cooling from 750°C using a starting mixture of Ba, Si, Na and NaN3, where Na and NaN3 were a flux and a nitrogen source respectively. It crystallizes with orthorhombic symmetry: space group P212121 (No. 19), a = 6.159, b = 10.305, c = 15.292 Å, and Z = 4. The crystal structure was determined from single-crystal data and refined to R1 = 0.0495 for all 1637 observed reflections and 89 variables. A pair of SiN4 tetrahedra contained in the structure forms a nitridometallate anion of [Si2N6]10- by edge sharing.
Original language | English |
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Pages (from-to) | 33-36 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 240 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1996 Jul 1 |
Keywords
- Barium silicon nitride
- Crystal structure
- Na flux
- Nitridometallate anion
- Single crystal
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry