data_[Tm2Nb2P2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Nb  1.6000  1.4500  0.8200
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [3.7787]
_cell_length_b [7.1413]
_cell_length_c [5.5402]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [TmNbPO]
_chemical_formula_sum '[Tm2 Nb2 P2 O2]'
_cell_volume [149.5025]
_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
[
  Tm  Tm0  2  0.5000  0.2902  0.9666  1
  Nb  Nb1  2  0.0000  0.0981  0.4761  1
  P  P2  2  0.5000  0.3274  0.4570  1
  O  O3  2  0.0000  0.1814  0.8542  1
]