data_[Sm3Ni6Sb3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ni  1.9100  1.3500  0.7400
  Sb  2.0500  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.3746]
_cell_length_b [5.3746]
_cell_length_c [14.5029]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SmNi2SbO6]
_chemical_formula_sum '[Sm3 Ni6 Sb3 O18]'
_cell_volume [362.8106]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.1976  1.0
  Ni  Ni1  3  0.0000  0.0000  0.4784  1.0
  Ni  Ni2  3  0.0000  0.0000  0.9863  1.0
  Sb  Sb3  3  0.0000  0.0000  0.6808  1.0
  O  O4  9  0.0154  0.3403  0.7447  1.0
  O  O5  9  0.0319  0.6260  0.2538  1.0
]