data_Y2ZnNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   4.8
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Y2ZnNi
_chemical_formula_sum   'Y2 Zn1 Ni1'
_cell_volume   78.03
_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  Y1  1  0.39  0.39  0.39  1.0
  Y  Y2  1  0.7  0.7  0.7  1.0
  Zn  Zn3  1  0.09  0.09  0.09  1.0
  Ni  Ni0  1  0.0  0.0  0.0  1.0

data_Y2ZnNi
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   11.75
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Y2ZnNi
_chemical_formula_sum   'Y6 Zn3 Ni3'
_cell_volume   234.09
_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  0.3  1.0
  Y  Y1  3  0.0  0.0  0.61  1.0
  Zn  Zn2  3  0.0  0.0  0.91  1.0
  Ni  Ni3  3  0.0  0.0  0.0  1.0

Y Y Zn Ni
Y Y Zn Ni 0 3 o o + 0 3 o + o 0 3 + o o 0 2 o o + 0 2 o + o 0 2 + o o 0 1 - o o 0 1 o - o 0 1 o o - 1 3 o + + 1 3 + o + 1 3 + + o 1 2 o + + 1 2 + o + 1 2 + + o 2 3 o o o 
Y2NiZn crystallizes in the trigonal R3m space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 11-coordinate geometry to four equivalent Y(2), three equivalent Ni(1), and four equivalent Zn(1) atoms. There are three shorter (2.79 Å) and one longer (3.57 Å) Y(1)-Y(2) bond length. All Y(1)-Ni(1) bond lengths are 2.85 Å. There are three shorter (2.79 Å) and one longer (3.57 Å) Y(1)-Zn(1) bond length. In the second Y site, Y(2) is bonded in a 11-coordinate geometry to four equivalent Y(1), four equivalent Ni(1), and three equivalent Zn(1) atoms. There are three shorter (2.79 Å) and one longer (3.57 Å) Y(2)-Ni(1) bond length. All Y(2)-Zn(1) bond lengths are 2.85 Å. Ni(1) is bonded in a single-bond geometry to three equivalent Y(1), four equivalent Y(2), and one Zn(1) atom. The Ni(1)-Zn(1) bond length is 1.03 Å. Zn(1) is bonded in a single-bond geometry to three equivalent Y(2), four equivalent Y(1), and one Ni(1) atom.