Materials Data on NaMgAs by Materials Project
NaMgAs is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Na1+ is bonded in a 5-coordinate geometry to five equivalent As3- atoms. There are one shorter (3.00 Å) and four longer (3.31 Å) Na–As bond lengths. Mg2+ is bonded to four equivalent As3- atoms to form a mixture of edge and corner-sharing MgAs4 tetrahedra. All Mg–As bond lengths are 2.71 Å. As3- is bonded in a 9-coordinate geometry to five equivalent Na1+ and four equivalent Mg2+ atoms.
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