data_[Pm1Mn2Cr1O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Mn  1.5500  1.4000  0.6483
  Cr  1.6600  1.4000  0.9400
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.5797]
_cell_length_b [6.3679]
_cell_length_c [4.7230]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.8165]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [PmMn2CrO8]
_chemical_formula_sum '[Pm1 Mn2 Cr1 O8]'
_cell_volume [137.5689]
_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
[
  Pm  Pm0  1  0.0000  0.5000  0.0000  1
  Mn  Mn1  2  0.5000  0.2381  0.5000  1
  Cr  Cr2  1  0.0000  0.0000  0.0000  1
  O  O3  4  0.2346  0.2090  0.1742  1
  O  O4  2  0.2733  0.0000  0.6670  1
  O  O5  2  0.2959  0.5000  0.6211  1
]