data_[Mg4Co4As8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Co  1.8800  1.3500  0.7683
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [5.8664]
_cell_length_b [5.8664]
_cell_length_c [10.3385]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [MgCoAs2]
_chemical_formula_sum '[Mg4 Co4 As8]'
_cell_volume [355.7945]
_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
[
  Mg  Mg0  4  0.0000  0.0000  0.5000  1
  Co  Co1  4  0.0000  0.0000  0.0000  1
  As  As2  8  0.1861  0.2500  0.1250  1
]