Materials Data on SrNi9P5 by Materials Project
SrNi9P5 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sr2+ is bonded in a distorted hexagonal planar geometry to six equivalent P3- atoms. All Sr–P bond lengths are 3.33 Å. There are two inequivalent Ni+1.44+ sites. In the first Ni+1.44+ site, Ni+1.44+ is bonded to four P3- atoms to form a mixture of edge and corner-sharing NiP4 tetrahedra. There are two shorter (2.26 Å) and two longer (2.34 Å) Ni–P bond lengths. In the second Ni+1.44+ site, Ni+1.44+ is bonded to four P3- atoms to form a mixture of edge and corner-sharing NiP4 tetrahedra. There are two shorter (2.14 Å) and two longer (2.51 Å) Ni–P bond lengths. There are two inequivalent P3- sites. In the first P3- site, P3- is bonded in a 6-coordinate geometry to two equivalent Sr2+ and six Ni+1.44+ atoms. In the second P3- site, P3- is bonded in a distorted q6 geometry to nine Ni+1.44+ atoms.