The material described by CaO crystallizes in the cubic Fd-3m space group. Ca(1) is bonded in a hexagonal planar geometry to six equivalent O(1) atoms. O(1) is bonded in a hexagonal planar geometry to six equivalent Ca(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.621
_cell_length_b   5.621
_cell_length_c   5.621
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   125.607
_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
  Ca  Ca0  1  0.000  0.500  0.000  1.0
  Ca  Ca1  1  0.000  0.000  0.500  1.0
  Ca  Ca2  1  0.500  0.000  0.000  1.0
  Ca  Ca3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.500  0.000  0.500  1.0
  O  O5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.000  0.500  0.500  1.0
  O  O7  1  0.500  0.500  0.500  1.0
[/CIF]
.
The material described by CaO crystallizes in the cubic Fd-3m space group. Ca(1) is bonded in a hexagonal planar geometry to six equivalent O(1) atoms. O(1) is bonded in a hexagonal planar geometry to six equivalent Ca(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaO
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.621
_cell_length_b   5.621
_cell_length_c   5.621
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   125.607
_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
  Ca  Ca0  1  0.000  0.500  0.000  1.0
  Ca  Ca1  1  0.000  0.000  0.500  1.0
  Ca  Ca2  1  0.500  0.000  0.000  1.0
  Ca  Ca3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.500  0.000  0.500  1.0
  O  O5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.000  0.500  0.500  1.0
  O  O7  1  0.500  0.500  0.500  1.0
[/CIF]
.