Be4TeO7 crystallizes in the cubic F-43m space group. Be(1) is bonded to one O(1) and three equivalent O(2) atoms to form BeO4 tetrahedra that share corners with three equivalent Te(1)O6 octahedra and corners with six equivalent Be(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. Te(1) is bonded to six equivalent O(2) atoms to form TeO6 octahedra that share corners with twelve equivalent Be(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a tetrahedral geometry to four equivalent Be(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Be(1) and one Te(1) atom.
Be4TeO7 crystallizes in the cubic F-43m space group. Be(1) is bonded to one O(1) and three equivalent O(2) atoms to form BeO4 tetrahedra that share corners with three equivalent Te(1)O6 octahedra and corners with six equivalent Be(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. The Be(1)-O(1) bond length is 1.61 Å. All Be(1)-O(2) bond lengths are 1.64 Å. Te(1) is bonded to six equivalent O(2) atoms to form TeO6 octahedra that share corners with twelve equivalent Be(1)O4 tetrahedra. All Te(1)-O(2) bond lengths are 1.92 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a tetrahedral geometry to four equivalent Be(1) atoms. In the second O site, O(2) is bonded in a trigonal planar geometry to two equivalent Be(1) and one Te(1) atom.