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Journal articles
Crystal structure of alluaudite-type NaMg3(HPO4)2(PO4)
Abstract : The title compound, sodium trimagnesium bis(hydrogen phosphate) phosphate, was obtained under hydrothermal conditions. In the crystal, two types of [MgO6] octahedra, one with point group symmetry 2, share edges to build chains extending parallel to [10-1]. These chains are linked together by two kinds of phosphate tetrahedra, HPO4 and PO4, the latter with point group symmetry 2. The three-dimensional framework delimits two different types of channels extending along [001]. One channel hosts the Na+ cations (site symmetry 2) surrounded by eight O atoms, with Na—O bond lengths varying between 2.2974 (13) and 2.922 (2) Å. The OH group of the HPO4 tetrahedron points into the other type of channel and exhibits a strong hydrogen bond to an O atom of the PO4 tetrahedron on the opposite side.
https://hal-uphf.archives-ouvertes.fr/hal-03116322
Contributor : Julie Cagniard Connect in order to contact the contributor
Submitted on : Wednesday, January 20, 2021 - 11:28:07 AM
Last modification on : Saturday, October 9, 2021 - 3:20:08 AM
Contributor : Julie Cagniard Connect in order to contact the contributor
Submitted on : Wednesday, January 20, 2021 - 11:28:07 AM
Last modification on : Saturday, October 9, 2021 - 3:20:08 AM
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