data_YNi2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.17
_cell_length_b   4.17
_cell_length_c   5.95
_cell_angle_alpha   109.94
_cell_angle_beta   109.94
_cell_angle_gamma   59.08
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YNi2Bi
_chemical_formula_sum   'Y1 Ni2 Bi1'
_cell_volume   81.64
_cell_formula_units_Z   1
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  Y3  1  0.49  0.0  0.13  1.0
  Ni  Ni1  1  0.92  0.0  0.9  1.0
  Ni  Ni2  1  0.07  0.0  0.84  1.0
  Bi  Bi0  1  0.83  0.0  0.82  1.0

data_YNi2Bi
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.11
_cell_length_b   4.17
_cell_length_c   5.95
_cell_angle_alpha   109.94
_cell_angle_beta   90.0
_cell_angle_gamma   119.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YNi2Bi
_chemical_formula_sum   'Y1 Ni2 Bi1'
_cell_volume   81.64
_cell_formula_units_Z   1
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  1  0.0  0.51  0.87  1.0
  Ni  Ni1  1  0.0  0.08  0.1  1.0
  Ni  Ni2  1  0.0  0.93  0.16  1.0
  Bi  Bi3  1  0.0  0.17  0.18  1.0

Y Ni Ni Bi
YNi2Bi crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one YNi2Bi cluster. Y(1) is bonded in a 1-coordinate geometry to one Ni(2) atom. The Y(1)-Ni(2) bond length is 1.99 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted single-bond geometry to one Ni(2) and one Bi(1) atom. The Ni(1)-Ni(2) bond length is 0.84 Å. The Ni(1)-Bi(1) bond length is 0.49 Å. In the second Ni site, Ni(2) is bonded in a 3-coordinate geometry to one Y(1), one Ni(1), and one Bi(1) atom. The Ni(2)-Bi(1) bond length is 0.95 Å. Bi(1) is bonded in a single-bond geometry to one Ni(1) and one Ni(2) atom.