data_Y2CoPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   4.75
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2CoPt
_chemical_formula_sum   'Y2 Co1 Pt1'
_cell_volume   75.89
_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  Y2  1  0.36  0.36  0.36  1.0
  Y  Y3  1  0.04  0.04  0.04  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Pt  Pt1  1  0.68  0.68  0.68  1.0

data_Y2CoPt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   11.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Y2CoPt
_chemical_formula_sum   'Y6 Co3 Pt3'
_cell_volume   227.66
_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  0.64  1.0
  Y  Y1  3  0.0  0.0  0.96  1.0
  Co  Co2  3  0.0  0.0  0.0  1.0
  Pt  Pt3  3  0.0  0.0  0.32  1.0

Y Y Co Pt
Y Y Co Pt 0 2 o o + 0 2 o + o 0 2 + o o 0 1 o o + 0 1 o + o 0 1 + o o 0 3 - o o 0 3 o - o 0 3 o o - 1 2 o o o 1 3 o - - 1 3 - o - 1 3 - - o 2 3 o - - 2 3 - o - 2 3 - - o 
Y2CoPt crystallizes in the trigonal R3m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 3-coordinate geometry to four equivalent Pt(1) atoms. There are three shorter (2.75 Å) and one longer (3.72 Å) Y(1)-Pt(1) bond length. In the second Y site, Y(2) is bonded in a single-bond geometry to one Co(1) and three equivalent Pt(1) atoms. The Y(2)-Co(1) bond length is 0.47 Å. All Y(2)-Pt(1) bond lengths are 2.76 Å. Co(1) is bonded in a single-bond geometry to one Y(2) and three equivalent Pt(1) atoms. All Co(1)-Pt(1) bond lengths are 2.75 Å. Pt(1) is bonded in a 10-coordinate geometry to three equivalent Y(2), four equivalent Y(1), and three equivalent Co(1) atoms.