data_[Sm2V2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  V  1.6300  1.3500  0.7775
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [18.5689]
_cell_length_b [3.9569]
_cell_length_c [13.0038]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [SmVSe3]
_chemical_formula_sum '[Sm2 V2 Se6]'
_cell_volume [955.4667]
_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
[
  Sm  Sm0  2  0.5000  0.0000  0.1639  1
  V  V1  2  0.5000  0.0000  0.8810  1
  Se  Se2  4  0.4039  0.0000  0.7601  1
  Se  Se3  2  0.5000  0.0000  0.4892  1
]