The material described by BeO2 is quartz (alpha)-like structured and crystallizes in the orthorhombic P2_12_12_1 space group. Be(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing BeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Be(1) atoms. In the second O site, O(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_BeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.206
_cell_length_b   4.315
_cell_length_c   8.135
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   147.624
_cell_formula_units_Z   4
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  0.457  0.319  0.126  1.0
  Be  Be1  1  0.043  0.681  0.626  1.0
  Be  Be2  1  0.543  0.819  0.374  1.0
  Be  Be3  1  0.957  0.181  0.874  1.0
  O  O4  1  0.186  0.135  0.030  1.0
  O  O5  1  0.314  0.865  0.530  1.0
  O  O6  1  0.814  0.635  0.470  1.0
  O  O7  1  0.686  0.365  0.970  1.0
  O  O8  1  0.628  0.110  0.261  1.0
  O  O9  1  0.872  0.890  0.761  1.0
  O  O10  1  0.372  0.610  0.239  1.0
  O  O11  1  0.128  0.390  0.739  1.0
[/CIF]
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The material described by BeO2 is quartz (alpha)-like structured and crystallizes in the orthorhombic P2_12_12_1 space group. Be(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing BeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Be(1) atoms. In the second O site, O(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_BeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.206
_cell_length_b   4.315
_cell_length_c   8.135
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   147.624
_cell_formula_units_Z   4
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  0.457  0.319  0.126  1.0
  Be  Be1  1  0.043  0.681  0.626  1.0
  Be  Be2  1  0.543  0.819  0.374  1.0
  Be  Be3  1  0.957  0.181  0.874  1.0
  O  O4  1  0.186  0.135  0.030  1.0
  O  O5  1  0.314  0.865  0.530  1.0
  O  O6  1  0.814  0.635  0.470  1.0
  O  O7  1  0.686  0.365  0.970  1.0
  O  O8  1  0.628  0.110  0.261  1.0
  O  O9  1  0.872  0.890  0.761  1.0
  O  O10  1  0.372  0.610  0.239  1.0
  O  O11  1  0.128  0.390  0.739  1.0
[/CIF]
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