data_YNi4Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   4.89
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YNi4Pt
_chemical_formula_sum   'Y1 Ni4 Pt1'
_cell_volume   82.78
_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  Y5  1  0.0  0.0  0.0  1.0
  Ni  Ni0  1  0.31  0.31  0.6  1.0
  Ni  Ni1  1  0.31  0.6  0.31  1.0
  Ni  Ni2  1  0.6  0.31  0.31  1.0
  Ni  Ni3  1  0.6  0.6  0.6  1.0
  Pt  Pt4  1  0.19  0.19  0.19  1.0

data_YNi4Pt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   11.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   YNi4Pt
_chemical_formula_sum   'Y3 Ni12 Pt3'
_cell_volume   248.34
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Ni  Ni1  9  0.1  0.19  0.59  1.0
  Ni  Ni2  3  0.0  0.0  0.4  1.0
  Pt  Pt3  3  0.0  0.0  0.81  1.0

Y Ni Ni Ni Ni Pt
YPtNi4 crystallizes in the trigonal R3m space group. Y(1) is bonded in a 4-coordinate geometry to one Pt(1), three equivalent Ni(1), and three equivalent Ni(2) atoms. The Y(1)-Pt(1) bond length is 2.26 Å. All Y(1)-Ni(1) bond lengths are 2.20 Å. All Y(1)-Ni(2) bond lengths are 2.92 Å. Pt(1) is bonded in a 4-coordinate geometry to one Y(1), three equivalent Ni(1), and three equivalent Ni(2) atoms. All Pt(1)-Ni(1) bond lengths are 2.41 Å. All Pt(1)-Ni(2) bond lengths are 2.99 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 4-coordinate geometry to one Y(1), one Pt(1), two equivalent Ni(1), and three equivalent Ni(2) atoms. Both Ni(1)-Ni(1) bond lengths are 1.43 Å. There is one shorter (2.47 Å) and two longer (3.02 Å) Ni(1)-Ni(2) bond lengths. In the second Ni site, Ni(2) is bonded in a 15-coordinate geometry to three equivalent Y(1), three equivalent Pt(1), and nine equivalent Ni(1) atoms.