data_[Na2Cr1P2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cr  1.6600  1.4000  0.9400
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.8554]
_cell_length_b [6.5027]
_cell_length_c [17.9055]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Na2CrP2]
_chemical_formula_sum '[Na2 Cr1 P2]'
_cell_volume [448.9066]
_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
[
  Na  Na0  1  0.5000  0.0000  0.3961  1
  Na  Na1  1  0.5000  0.5000  0.5325  1
  Cr  Cr2  1  0.5000  0.0000  0.5584  1
  P  P3  2  0.0000  0.1745  0.5065  1
]