data_[Y4Ni2As2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Ni  1.9100  1.3500  0.7400
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7425]
_cell_length_b [4.0169]
_cell_length_c [8.0202]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.8811]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Y2NiAs]
_chemical_formula_sum '[Y4 Ni2 As2]'
_cell_volume [172.8523]
_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
[
  Y  Y0  2  0.2180  0.7500  0.4445  1.0
  Y  Y1  2  0.2201  0.7500  0.9115  1.0
  Ni  Ni2  2  0.3601  0.2500  0.7148  1.0
  As  As3  2  0.3398  0.2500  0.2070  1.0
]