Materials Data on Sr3As by Materials Project
Sr3As crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sr is bonded in a 4-coordinate geometry to four equivalent As atoms. There are two shorter (3.56 Å) and two longer (3.78 Å) Sr–As bond lengths. As is bonded to twelve equivalent Sr atoms to form a mixture of face and corner-sharing AsSr12 cuboctahedra.