The compound described by BeF2 is quartz (alpha) structured and crystallizes in the trigonal P3_121 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 Crystallographic Information File (CIF) [CIF]
data_BeF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.667
_cell_length_b   4.667
_cell_length_c   5.183
_cell_angle_alpha   90.020
_cell_angle_beta   89.981
_cell_angle_gamma   120.007
_symmetry_Int_Tables_number   1
_cell_volume   97.767
_cell_formula_units_Z   3
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  0.466  0.000  0.333  1.0
  Be  Be1  1  0.000  0.466  0.667  1.0
  Be  Be2  1  0.534  0.534  1.000  1.0
  F  F3  1  0.411  0.278  0.222  1.0
  F  F4  1  0.722  0.134  0.556  1.0
  F  F5  1  0.866  0.588  0.889  1.0
  F  F6  1  0.134  0.722  0.444  1.0
  F  F7  1  0.588  0.866  0.111  1.0
  F  F8  1  0.278  0.411  0.778  1.0
[/CIF]
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The compound described by BeF2 is quartz (alpha) structured and crystallizes in the trigonal P3_121 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 Crystallographic Information File (CIF) [CIF]
data_BeF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.667
_cell_length_b   4.667
_cell_length_c   5.183
_cell_angle_alpha   90.020
_cell_angle_beta   89.981
_cell_angle_gamma   120.007
_symmetry_Int_Tables_number   1
_cell_volume   97.767
_cell_formula_units_Z   3
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  0.466  0.000  0.333  1.0
  Be  Be1  1  0.000  0.466  0.667  1.0
  Be  Be2  1  0.534  0.534  1.000  1.0
  F  F3  1  0.411  0.278  0.222  1.0
  F  F4  1  0.722  0.134  0.556  1.0
  F  F5  1  0.866  0.588  0.889  1.0
  F  F6  1  0.134  0.722  0.444  1.0
  F  F7  1  0.588  0.866  0.111  1.0
  F  F8  1  0.278  0.411  0.778  1.0
[/CIF]
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