data_[Y4Si4Ni8H4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
  Ni  1.9100  1.3500  0.7400
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.6684]
_cell_length_b [10.0939]
_cell_length_c [6.6444]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [YSiNi2H]
_chemical_formula_sum '[Y4 Si4 Ni8 H4]'
_cell_volume [246.0305]
_cell_formula_units_Z [4]
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  4  0.0000  0.4411  0.7500  1.0
  Si  Si1  4  0.0000  0.2770  0.2500  1.0
  Ni  Ni2  8  0.0000  0.1660  0.5580  1.0
  H  H3  4  0.0000  0.0000  0.0000  1.0
]