data_Hf2NbIn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   5.91
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2NbIn
_chemical_formula_sum   'Hf2 Nb1 In1'
_cell_volume   145.87
_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
  Hf  Hf0  1  0.27  0.27  0.27  1.0
  Hf  Hf1  1  0.18  0.18  0.18  1.0
  Nb  Nb3  1  0.0  0.0  0.0  1.0
  In  In2  1  0.09  0.09  0.09  1.0

data_Hf2NbIn
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.91
_cell_length_b   5.91
_cell_length_c   14.47
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Hf2NbIn
_chemical_formula_sum   'Hf6 Nb3 In3'
_cell_volume   437.62
_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
  Hf  Hf0  3  0.0  0.0  0.73  1.0
  Hf  Hf1  3  0.0  0.0  0.82  1.0
  Nb  Nb2  3  0.0  0.0  0.0  1.0
  In  In3  3  0.0  0.0  0.91  1.0

Hf Hf Nb In
Hf Hf Nb In 0 1 o o o 1 3 o o o 2 3 o o o 
Hf2NbIn crystallizes in the trigonal R3m space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded to one Hf(2) and three equivalent Nb(1) atoms to form distorted corner-sharing HfHfNb3 tetrahedra. The Hf(1)-Hf(2) bond length is 1.29 Å. All Hf(1)-Nb(1) bond lengths are 3.54 Å. In the second Hf site, Hf(2) is bonded in a linear geometry to one Hf(1) and one In(1) atom. The Hf(2)-In(1) bond length is 1.29 Å. Nb(1) is bonded in a single-bond geometry to three equivalent Hf(1) and one In(1) atom. The Nb(1)-In(1) bond length is 1.29 Å. In(1) is bonded in a linear geometry to one Hf(2) and one Nb(1) atom.