data_[Mn2As2Se2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [3.0349]
_cell_length_b [5.2831]
_cell_length_c [6.0087]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [MnAsSe]
_chemical_formula_sum '[Mn2 As2 Se2]'
_cell_volume [96.3432]
_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
[
  Mn  Mn0  2  0.0000  0.2559  0.9937  1.0
  As  As1  2  0.0000  0.0578  0.6437  1.0
  Se  Se2  2  0.0000  0.4324  0.3606  1.0
]