The crystal structure described by BeF2 is quartz (alpha)-like structured and crystallizes in the cubic I-43m space group. Be(1) is bonded to four equivalent F(1) atoms to form corner-sharing BeF4 tetrahedra. F(1) is bonded in a bent 150 degrees geometry to two equivalent Be(1) atoms. is represented by the CIF file [CIF]
data_BeF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.176
_cell_length_b   7.176
_cell_length_c   7.176
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   284.471
_cell_formula_units_Z   6
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  0.750  0.500  0.250  1.0
  Be  Be1  1  0.500  0.750  0.250  1.0
  Be  Be2  1  0.750  0.250  0.500  1.0
  Be  Be3  1  0.500  0.250  0.750  1.0
  Be  Be4  1  0.250  0.500  0.750  1.0
  Be  Be5  1  0.250  0.750  0.500  1.0
  F  F6  1  0.698  0.412  0.000  1.0
  F  F7  1  0.302  0.302  0.714  1.0
  F  F8  1  0.412  0.698  0.000  1.0
  F  F9  1  0.000  0.412  0.698  1.0
  F  F10  1  0.286  0.588  0.588  1.0
  F  F11  1  1.000  0.698  0.412  1.0
  F  F12  1  0.588  0.286  0.588  1.0
  F  F13  1  0.302  0.714  0.302  1.0
  F  F14  1  0.698  0.000  0.412  1.0
  F  F15  1  0.714  0.302  0.302  1.0
  F  F16  1  0.412  0.000  0.698  1.0
  F  F17  1  0.588  0.588  0.286  1.0
[/CIF]
.
The crystal structure described by BeF2 is quartz (alpha)-like structured and crystallizes in the cubic I-43m space group. Be(1) is bonded to four equivalent F(1) atoms to form corner-sharing BeF4 tetrahedra. F(1) is bonded in a bent 150 degrees geometry to two equivalent Be(1) atoms. is represented by the CIF file [CIF]
data_BeF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.176
_cell_length_b   7.176
_cell_length_c   7.176
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   284.471
_cell_formula_units_Z   6
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  0.750  0.500  0.250  1.0
  Be  Be1  1  0.500  0.750  0.250  1.0
  Be  Be2  1  0.750  0.250  0.500  1.0
  Be  Be3  1  0.500  0.250  0.750  1.0
  Be  Be4  1  0.250  0.500  0.750  1.0
  Be  Be5  1  0.250  0.750  0.500  1.0
  F  F6  1  0.698  0.412  0.000  1.0
  F  F7  1  0.302  0.302  0.714  1.0
  F  F8  1  0.412  0.698  0.000  1.0
  F  F9  1  0.000  0.412  0.698  1.0
  F  F10  1  0.286  0.588  0.588  1.0
  F  F11  1  1.000  0.698  0.412  1.0
  F  F12  1  0.588  0.286  0.588  1.0
  F  F13  1  0.302  0.714  0.302  1.0
  F  F14  1  0.698  0.000  0.412  1.0
  F  F15  1  0.714  0.302  0.302  1.0
  F  F16  1  0.412  0.000  0.698  1.0
  F  F17  1  0.588  0.588  0.286  1.0
[/CIF]
.