Sr3TeO6 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SrO6 octahedra that share corners with six equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-34°. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. Te(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TeO6 octahedra that share corners with six equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-34°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), two equivalent Sr(2), and one Te(1) atom to form distorted corner-sharing OSr3Te tetrahedra. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), three equivalent Sr(2), and one Te(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), three equivalent Sr(2), and one Te(1) atom.
Sr3TeO6 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SrO6 octahedra that share corners with six equivalent Te(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-34°. Both Sr(1)-O(1) bond lengths are 2.45 Å. Both Sr(1)-O(2) bond lengths are 2.47 Å. Both Sr(1)-O(3) bond lengths are 2.41 Å. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. There is one shorter (2.52 Å) and one longer (2.58 Å) Sr(2)-O(1) bond length. There are a spread of Sr(2)-O(2) bond distances ranging from 2.54-3.07 Å. There are a spread of Sr(2)-O(3) bond distances ranging from 2.54-2.94 Å. Te(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form TeO6 octahedra that share corners with six equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 28-34°. Both Te(1)-O(1) bond lengths are 1.93 Å. Both Te(1)-O(2) bond lengths are 1.94 Å. Both Te(1)-O(3) bond lengths are 1.93 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), two equivalent Sr(2), and one Te(1) atom to form distorted corner-sharing OSr3Te tetrahedra. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), three equivalent Sr(2), and one Te(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), three equivalent Sr(2), and one Te(1) atom.