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Crystal structure of dicaesium strontium hexacyanidoferrate(II), Cs2Sr[Fe(CN)6], from laboratory X-ray powder data
- Source :
- Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 6, Pp 900-904 (2020)
- Publication Year :
- 2020
- Publisher :
- International Union of Crystallography, 2020.
-
Abstract
- Ferrocyanides with general formula AIxBIIy[Fe(CN)6], where A and B are cations, are thought to accept many substitutions on the A and B positions. In this communication, the synthesis and crystal structure of Cs2Sr[Fe(CN)6] are reported. The latter was obtained from K2Ba[Fe(CN)6] particles, put in contact with caesium and strontium ions. Hence, a simultaneous ion-exchange mechanism (Cs for K, Sr for Ba) occurs to yield Cs2Sr[Fe(CN)6]. The synthesis protocol shows that K2BaFe(CN)6 particles can be used for the simultaneous trapping of radioactive caesium and strontium nuclides in water streams. Cs2Sr[Fe(CN)6] adopts the cryolite structure type and is isotypic with the known compound Cs2Na[Mn(CN)6] [dicaesium sodium hexacyanidomanganate(III)]. The octahedrally coordinated Sr and Fe sites both are located on inversion centres, and the eightfold-coordinated Cs site on a general position.
Details
- Language :
- English
- ISSN :
- 20569890
- Volume :
- 76
- Issue :
- 6
- Database :
- Directory of Open Access Journals
- Journal :
- Acta Crystallographica Section E: Crystallographic Communications
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f8bbc017f6cd4f5ca8b93b97a69da1dc
- Document Type :
- article
- Full Text :
- https://doi.org/10.1107/S2056989020006660