The crystal structure described by 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. is represented by the CIF card [CIF]
data_Be4TeO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.359
_cell_length_b   5.359
_cell_length_c   5.359
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   108.815
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Be  Be0  1  0.627  0.627  0.627  1.0
  Be  Be1  1  0.627  0.119  0.627  1.0
  Be  Be2  1  0.627  0.627  0.119  1.0
  Be  Be3  1  0.119  0.627  0.627  1.0
  Te  Te4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.750  0.750  0.750  1.0
  O  O6  1  0.747  0.253  0.253  1.0
  O  O7  1  0.253  0.253  0.747  1.0
  O  O8  1  0.747  0.747  0.253  1.0
  O  O9  1  0.253  0.747  0.747  1.0
  O  O10  1  0.253  0.747  0.253  1.0
  O  O11  1  0.747  0.253  0.747  1.0
[/CIF]
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The crystal structure described by 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. is represented by the CIF card [CIF]
data_Be4TeO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.359
_cell_length_b   5.359
_cell_length_c   5.359
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   108.815
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Be  Be0  1  0.627  0.627  0.627  1.0
  Be  Be1  1  0.627  0.119  0.627  1.0
  Be  Be2  1  0.627  0.627  0.119  1.0
  Be  Be3  1  0.119  0.627  0.627  1.0
  Te  Te4  1  0.000  0.000  0.000  1.0
  O  O5  1  0.750  0.750  0.750  1.0
  O  O6  1  0.747  0.253  0.253  1.0
  O  O7  1  0.253  0.253  0.747  1.0
  O  O8  1  0.747  0.747  0.253  1.0
  O  O9  1  0.253  0.747  0.747  1.0
  O  O10  1  0.253  0.747  0.253  1.0
  O  O11  1  0.747  0.253  0.747  1.0
[/CIF]
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