data_Be3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.52
_cell_length_b   3.52
_cell_length_c   2.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be3Co
_chemical_formula_sum   'Be3 Co1'
_cell_volume   33.17
_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  0.0  0.0  0.0  1.0
  Be  Be1  1  0.0  0.76  0.34  1.0
  Be  Be2  1  0.76  0.0  0.34  1.0
  Co  Co3  1  0.76  0.76  0.0  1.0

data_Be3Co
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.98
_cell_length_b   4.98
_cell_length_c   2.67
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Be3Co
_chemical_formula_sum   'Be6 Co2'
_cell_volume   66.33
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  4  0.38  0.38  0.34  1.0
  Be  Be1  2  0.0  0.0  0.0  1.0
  Co  Co2  2  0.26  0.5  0.0  1.0

Be Be Be Co
Be Be Be Co 0 3 - - o 0 2 - o o 0 1 o - o 1 3 - o o 1 2 - + o 2 3 o - o 