data_ThIn2Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.13
_cell_length_b   5.13
_cell_length_c   5.13
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ThIn2Cu
_chemical_formula_sum   'Th1 In2 Cu1'
_cell_volume   95.42
_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
  Th  Th3  1  0.63  0.63  0.63  1.0
  In  In1  1  0.44  0.44  0.44  1.0
  In  In2  1  0.81  0.81  0.81  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0

data_ThIn2Cu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.13
_cell_length_b   5.13
_cell_length_c   12.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ThIn2Cu
_chemical_formula_sum   'Th3 In6 Cu3'
_cell_volume   286.27
_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
  Th  Th0  3  0.0  0.0  0.37  1.0
  In  In1  3  0.0  0.0  0.19  1.0
  In  In2  3  0.0  0.0  0.56  1.0
  Cu  Cu3  3  0.0  0.0  0.0  1.0

Th In In Cu
Th In In Cu 0 1 o o o 0 2 o o o 0 3 + + o 0 3 + o + 0 3 o + + 1 2 - o o 1 2 o - o 1 2 o o - 2 3 + + + 
ThCuIn2 crystallizes in the trigonal R3m space group. Th(1) is bonded in a 5-coordinate geometry to three equivalent Cu(1), one In(1), and one In(2) atom. All Th(1)-Cu(1) bond lengths are 3.00 Å. The Th(1)-In(1) bond length is 2.34 Å. The Th(1)-In(2) bond length is 2.34 Å. Cu(1) is bonded in a 7-coordinate geometry to three equivalent Th(1), one In(2), and three equivalent In(1) atoms. The Cu(1)-In(2) bond length is 2.34 Å. All Cu(1)-In(1) bond lengths are 3.25 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a single-bond geometry to one Th(1) and three equivalent Cu(1) atoms. In the second In site, In(2) is bonded in a distorted linear geometry to one Th(1) and one Cu(1) atom.