data_[Mg4Co2As4]
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 [Amm2]
_cell_length_a [18.8314]
_cell_length_b [2.9985]
_cell_length_c [9.3497]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Mg2CoAs2]
_chemical_formula_sum '[Mg4 Co2 As4]'
_cell_volume [527.9340]
_cell_formula_units_Z [2]
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  0.4233  0.0000  0.0414  1
  Co  Co1  2  0.5000  0.0000  0.7614  1
  As  As2  4  0.3983  0.0000  0.3098  1
]