data_[Na2Mn2As4O14]
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
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [6.8146]
_cell_length_b [8.7806]
_cell_length_c [4.7861]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.1256]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [NaMnAs2O7]
_chemical_formula_sum '[Na2 Mn2 As4 O14]'
_cell_volume [282.7533]
_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  0.2417  0.0000  1.0
  Mn  Mn1  2  0.0000  0.6220  0.0000  1.0
  As  As2  4  0.2234  0.9602  0.4134  1.0
  O  O3  4  0.1195  0.4486  0.2726  1.0
  O  O4  4  0.1815  0.7930  0.2414  1.0
  O  O5  4  0.2239  0.6110  0.7974  1.0
  O  O6  2  0.0000  0.0437  0.5000  1.0
]