data_YInNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   4.64
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YInNi
_chemical_formula_sum   'Y1 In1 Ni1'
_cell_volume   70.53
_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  0.64  0.64  0.64  1.0
  In  In0  1  0.28  0.28  0.28  1.0
  Ni  Ni1  1  0.0  0.0  0.0  1.0

data_YInNi
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.64
_cell_length_b   4.64
_cell_length_c   11.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   YInNi
_chemical_formula_sum   'Y3 In3 Ni3'
_cell_volume   211.6
_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  0.36  1.0
  In  In1  3  0.0  0.0  0.72  1.0
  Ni  Ni2  3  0.0  0.0  0.0  1.0

Y In Ni
Y In Ni 0 1 o o + 0 1 o + o 0 1 + o o 0 2 o + + 0 2 + o + 0 2 + + o 1 2 o o o 1 2 o o + 1 2 o + o 1 2 + o o 
YNiIn crystallizes in the trigonal R3m space group. Y(1) is bonded in a hexagonal planar geometry to three equivalent Ni(1) and three equivalent In(1) atoms. All Y(1)-Ni(1) bond lengths are 2.70 Å. All Y(1)-In(1) bond lengths are 2.70 Å. Ni(1) is bonded to three equivalent Y(1) and four equivalent In(1) atoms to form distorted NiY3In4 hexagonal pyramids that share corners with three equivalent In(1)Y3Ni4 hexagonal pyramids, corners with six equivalent Ni(1)Y3In4 hexagonal pyramids, edges with three equivalent In(1)Y3Ni4 hexagonal pyramids, and edges with six equivalent Ni(1)Y3In4 hexagonal pyramids. There are three shorter (2.75 Å) and one longer (3.17 Å) Ni(1)-In(1) bond length. In(1) is bonded to three equivalent Y(1) and four equivalent Ni(1) atoms to form distorted InY3Ni4 hexagonal pyramids that share corners with three equivalent Ni(1)Y3In4 hexagonal pyramids, corners with six equivalent In(1)Y3Ni4 hexagonal pyramids, edges with three equivalent Ni(1)Y3In4 hexagonal pyramids, and edges with six equivalent In(1)Y3Ni4 hexagonal pyramids.