High-pressure synthesis and crystal structure of Ga<sub>5</sub>Na<sub>1–<i>x</i> </sub>B<sub>12</sub>O<sub>26–<i>x</i> </sub>(OH)<sub> <i>x</i> </sub> (<i>x</i> = 0.12)
Abstract Tetragonal Ga 5 Na 1– x B 12 O 26– x (OH) x ( x = 0.12) was synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 12.4 GPa/1,280 °C. The compound crystallizes in the space group I 4 1 / acd (no. 142) with lattice parameters of a = 11.0884(6) and c = 21.730(2) Å. The crystal structure has been determined by single-crystal X-ray diffraction and revealed an occupation with Na + of about 88 % of the cuboctahedral cavity formed by condensed [BO 4 ] tetrahedra in the related homeotypic structure of Ga 5 B 12 O 25 (OH). The structure refinement is additionally supported by infrared spectroscopy (IR) and energy-dispersive X-ray (EDX) investigations.
Authors
- Klaus Wurst (ORCID: https://orcid.org/0000-0002-8774-9051)
- Stefan Schwarzmüller
- Ingo Widmann (ORCID: https://orcid.org/0009-0009-8252-9891)
- Hubert Huppertz (ORCID: https://orcid.org/0000-0002-2098-6087)
Institutions
- Universität Innsbruck (AT)
Publication Details
- Journal
- Zeitschrift für Naturforschung B
- Published
- 2025-04-29
- DOI
- https://doi.org/10.1515/znb-2025-0005
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Universität Innsbruck