data_[Na2Mn2Cu2As4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mn  1.5500  1.4000  0.6483
  Cu  1.9000  1.3500  0.8200
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [4.0231]
_cell_length_b [4.0231]
_cell_length_c [11.7075]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [NaMnCuAs2]
_chemical_formula_sum '[Na2 Mn2 Cu2 As4]'
_cell_volume [189.4889]
_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
[
  Na  Na0  2  0.0000  0.0000  0.0000  1.0
  Mn  Mn1  2  0.0000  0.5000  0.7500  1.0
  Cu  Cu2  2  0.0000  0.5000  0.2500  1.0
  As  As3  4  0.0000  0.0000  0.3700  1.0
]