data_[K2Sm4Cu2Ni2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sm  1.1700  1.8500  1.2290
  Cu  1.9000  1.3500  0.8200
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.8436]
_cell_length_b [4.3194]
_cell_length_c [17.2011]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [KSm2CuNi]
_chemical_formula_sum '[K2 Sm4 Cu2 Ni2]'
_cell_volume [285.5675]
_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
[
  K  K0  2  0.0000  0.0000  0.0000  1
  Sm  Sm1  2  0.5000  0.0000  0.3314  1
  Sm  Sm2  2  0.5000  0.0000  0.6650  1
  Cu  Cu3  2  0.0000  0.0000  0.7935  1
  Ni  Ni4  2  0.0000  0.0000  0.2100  1
]