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Structure refinement of (NH4)3Al2(PO4)3 prepared by ionothermal synthesis in phosphonium based ionic liquids – a redetermination
- Source :
- Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 12, Pp 1897-1901 (2019)
- Publication Year :
- 2019
- Publisher :
- International Union of Crystallography, 2019.
-
Abstract
- After crystallization during ionothermal syntheses in phosphonium-containing ionic liquids, the structure of (NH4)3Al2(PO4)3 [triammonium dialuminum tris(phosphate)] was refined on the basis of powder X-ray diffraction data from a synchrotron source. (NH4)3Al2(PO4)3 is a member of the structural family with formula A3Al2(PO4)3, where A is a group 1 element, and of which the NH4, K, and Rb forms were previously known. The NH4 form is isostructural with the K form, and was previously solved from single-crystal X-ray data when the material (SIZ-2) crystallized from a choline-containing eutectic mixture [Cooper et al. (2004). Nature, 430, 1012–1017]. Our independent refinement incorporates NH4 groups and shows that these NH4 groups are hydrogen bonded to framework O atoms present in rings containing 12 T sites in a channel along the c-axis direction. We describe structural details of (NH4)3Al2(PO4)3 and discuss differences with respect to isostructural forms.
Details
- Language :
- English
- ISSN :
- 20569890
- Volume :
- 75
- Issue :
- 12
- Database :
- Directory of Open Access Journals
- Journal :
- Acta Crystallographica Section E: Crystallographic Communications
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.73ae51454e149fb83f13b23f175e1e7
- Document Type :
- article
- Full Text :
- https://doi.org/10.1107/S2056989019015330