data_SrTa2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.91
_cell_length_b   4.91
_cell_length_c   4.91
_cell_angle_alpha   121.44
_cell_angle_beta   121.44
_cell_angle_gamma   87.52
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrTa2Ge
_chemical_formula_sum   'Sr1 Ta2 Ge1'
_cell_volume   82.03
_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
  Sr  Sr1  1  0.4  0.0  0.77  1.0
  Ta  Ta2  1  0.0  0.0  0.55  1.0
  Ta  Ta3  1  0.0  0.4  0.77  1.0
  Ge  Ge0  1  0.0  0.0  0.0  1.0

data_SrTa2Ge
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.81
_cell_length_b   4.81
_cell_length_c   4.91
_cell_angle_alpha   119.28
_cell_angle_beta   119.28
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrTa2Ge
_chemical_formula_sum   'Sr1 Ta2 Ge1'
_cell_volume   82.03
_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
  Sr  Sr0  1  0.77  0.37  0.37  1.0
  Ta  Ta1  1  0.37  0.77  0.37  1.0
  Ta  Ta2  1  0.55  0.55  0.55  1.0
  Ge  Ge3  1  0.0  0.0  0.0  1.0

Sr Ta Ta Ge
Sr Ta Ta Ge 0 1 o o o 0 3 + o + 0 3 o o + 1 2 o o o 1 3 o o + 1 3 o o o 2 3 o o + 2 3 o + + 
SrTa2Ge crystallizes in the triclinic P1 space group. Sr(1) is bonded in a 2-coordinate geometry to one Ta(1) and three equivalent Ge(1) atoms. The Sr(1)-Ta(1) bond length is 1.69 Å. There are a spread of Sr(1)-Ge(1) bond distances ranging from 2.54-3.25 Å. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 1-coordinate geometry to one Sr(1), one Ta(2), and two equivalent Ge(1) atoms. The Ta(1)-Ta(2) bond length is 1.69 Å. There is one shorter (2.21 Å) and one longer (2.70 Å) Ta(1)-Ge(1) bond length. In the second Ta site, Ta(2) is bonded in a 2-coordinate geometry to one Ta(1) and three equivalent Ge(1) atoms. There are a spread of Ta(2)-Ge(1) bond distances ranging from 2.54-3.25 Å. Ge(1) is bonded in a 8-coordinate geometry to three equivalent Sr(1), two equivalent Ta(1), and three equivalent Ta(2) atoms.