The compound described by Ta5SnGa2 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 7-coordinate geometry to one Ta(1), four equivalent Ga(1), and two equivalent Sn(1) atoms. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ta(2) and four equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to eight equivalent Ta(1) and two equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta5Ga2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.823
_cell_length_b   7.823
_cell_length_c   7.823
_cell_angle_alpha   96.681
_cell_angle_beta   96.681
_cell_angle_gamma   140.115
_symmetry_Int_Tables_number   1
_cell_volume   288.543
_cell_formula_units_Z   2
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
  Ta  Ta0  1  0.735  0.577  0.312  1.0
  Ta  Ta1  1  0.265  0.423  0.688  1.0
  Ta  Ta2  1  0.765  0.077  0.842  1.0
  Ta  Ta3  1  0.235  0.923  0.158  1.0
  Ta  Ta4  1  0.577  0.265  0.842  1.0
  Ta  Ta5  1  0.423  0.735  0.158  1.0
  Ta  Ta6  1  0.077  0.235  0.312  1.0
  Ta  Ta7  1  0.923  0.765  0.688  1.0
  Ta  Ta8  1  0.750  0.250  0.500  1.0
  Ta  Ta9  1  0.250  0.750  0.500  1.0
  Ga  Ga10  1  0.166  0.666  0.833  1.0
  Ga  Ga11  1  0.834  0.334  0.167  1.0
  Ga  Ga12  1  0.334  0.166  0.500  1.0
  Ga  Ga13  1  0.666  0.834  0.500  1.0
  Sn  Sn14  1  0.250  0.250  0.000  1.0
  Sn  Sn15  1  0.750  0.750  0.000  1.0
[/CIF]
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The compound described by Ta5SnGa2 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 7-coordinate geometry to one Ta(1), four equivalent Ga(1), and two equivalent Sn(1) atoms. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ta(2) and four equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to eight equivalent Ta(1) and two equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta5Ga2Sn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.823
_cell_length_b   7.823
_cell_length_c   7.823
_cell_angle_alpha   96.681
_cell_angle_beta   96.681
_cell_angle_gamma   140.115
_symmetry_Int_Tables_number   1
_cell_volume   288.543
_cell_formula_units_Z   2
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
  Ta  Ta0  1  0.735  0.577  0.312  1.0
  Ta  Ta1  1  0.265  0.423  0.688  1.0
  Ta  Ta2  1  0.765  0.077  0.842  1.0
  Ta  Ta3  1  0.235  0.923  0.158  1.0
  Ta  Ta4  1  0.577  0.265  0.842  1.0
  Ta  Ta5  1  0.423  0.735  0.158  1.0
  Ta  Ta6  1  0.077  0.235  0.312  1.0
  Ta  Ta7  1  0.923  0.765  0.688  1.0
  Ta  Ta8  1  0.750  0.250  0.500  1.0
  Ta  Ta9  1  0.250  0.750  0.500  1.0
  Ga  Ga10  1  0.166  0.666  0.833  1.0
  Ga  Ga11  1  0.834  0.334  0.167  1.0
  Ga  Ga12  1  0.334  0.166  0.500  1.0
  Ga  Ga13  1  0.666  0.834  0.500  1.0
  Sn  Sn14  1  0.250  0.250  0.000  1.0
  Sn  Sn15  1  0.750  0.750  0.000  1.0
[/CIF]
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