data_Sc3TaTl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   5.16
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sc3TaTl
_chemical_formula_sum   'Sc3 Ta1 Tl1'
_cell_volume   137.55
_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  Sc0  1  0.0  0.58  0.0  1.0
  Sc  Sc1  1  0.0  0.0  0.58  1.0
  Sc  Sc2  1  0.58  0.0  0.0  1.0
  Ta  Ta4  1  0.0  0.0  0.0  1.0
  Tl  Tl3  1  0.58  0.58  0.58  1.0

data_Sc3TaTl
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.3
_cell_length_b   7.3
_cell_length_c   8.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Sc3TaTl
_chemical_formula_sum   'Sc9 Ta3 Tl3'
_cell_volume   412.65
_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  9  0.05  0.53  0.53  1.0
  Ta  Ta1  3  0.0  0.0  0.0  1.0
  Tl  Tl2  3  0.0  0.0  0.58  1.0

Sc Sc Sc Ta Tl
Sc Sc Sc Ta Tl 0 3 o + o 0 4 o o - 0 4 - o o 0 4 - o - 1 3 o o + 1 4 o - o 1 4 - o o 1 4 - - o 2 3 + o o 2 4 o o - 2 4 o - o 2 4 o - - 3 4 - - - 
Sc3TaTl crystallizes in the trigonal R3m space group. Sc(1) is bonded in a distorted single-bond geometry to two equivalent Ta(1) and three equivalent Tl(1) atoms. There is one shorter (2.16 Å) and one longer (3.00 Å) Sc(1)-Ta(1) bond length. There is one shorter (3.06 Å) and two longer (3.70 Å) Sc(1)-Tl(1) bond lengths. Ta(1) is bonded to six equivalent Sc(1) atoms to form distorted corner-sharing TaSc6 octahedra. The corner-sharing octahedra are not tilted. Tl(1) is bonded in a 9-coordinate geometry to nine equivalent Sc(1) atoms.