data_[Tm2Be2As2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Be  1.5700  1.0500  0.5900
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.1311]
_cell_length_b [5.8915]
_cell_length_c [5.4819]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [TmBeAsO]
_chemical_formula_sum '[Tm2 Be2 As2 O2]'
_cell_volume [133.4221]
_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  0.0000  0.2522  0.4132  1
  Be  Be1  2  0.5000  0.3939  0.0531  1
  As  As2  2  0.0000  0.2300  0.9204  1
  O  O3  2  0.5000  0.3816  0.3673  1
]