data_ScTaSb4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.03
_cell_length_b   6.03
_cell_length_c   6.03
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ScTaSb4
_chemical_formula_sum   'Sc1 Ta1 Sb4'
_cell_volume   155.41
_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
  Sc  Sc4  1  0.0  0.0  0.0  1.0
  Ta  Ta5  1  0.13  0.13  0.13  1.0
  Sb  Sb0  1  0.2  0.2  0.33  1.0
  Sb  Sb1  1  0.2  0.33  0.2  1.0
  Sb  Sb2  1  0.33  0.2  0.2  1.0
  Sb  Sb3  1  0.33  0.33  0.33  1.0

data_ScTaSb4
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.03
_cell_length_b   6.03
_cell_length_c   14.78
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ScTaSb4
_chemical_formula_sum   'Sc3 Ta3 Sb12'
_cell_volume   466.23
_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
  Sc  Sc0  3  0.0  0.0  0.0  1.0
  Ta  Ta1  3  0.0  0.0  0.87  1.0
  Sb  Sb2  9  0.04  0.08  0.75  1.0
  Sb  Sb3  3  0.0  0.0  0.67  1.0

Sc Ta Sb Sb Sb Sb
Sc Ta Sb Sb Sb Sb 0 1 o o o 1 4 o o o 1 3 o o o 1 2 o o o 2 4 o o o 2 3 o o o 2 5 o o o 3 4 o o o 3 5 o o o 4 5 o o o 
ScTaSb4 crystallizes in the trigonal R3m space group. Sc(1) is bonded in a 1-coordinate geometry to one Ta(1), three equivalent Sb(1), and three equivalent Sb(2) atoms. The Sc(1)-Ta(1) bond length is 1.98 Å. All Sc(1)-Sb(1) bond lengths are 3.31 Å. All Sc(1)-Sb(2) bond lengths are 3.48 Å. Ta(1) is bonded in a distorted rectangular see-saw-like geometry to one Sc(1) and three equivalent Sb(1) atoms. All Ta(1)-Sb(1) bond lengths are 1.72 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(2) is bonded in a 6-coordinate geometry to three equivalent Sc(1) and three equivalent Sb(1) atoms. All Sb(2)-Sb(1) bond lengths are 1.31 Å. In the second Sb site, Sb(1) is bonded in a 5-coordinate geometry to one Sc(1), one Ta(1), one Sb(2), and two equivalent Sb(1) atoms. Both Sb(1)-Sb(1) bond lengths are 0.76 Å.