data_BaGe2Te
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.83
_cell_length_b   4.83
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaGe2Te
_chemical_formula_sum   'Ba1 Ge2 Te1'
_cell_volume   112.37
_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
  Ba  Ba0  1  0.41  0.41  0.0  1.0
  Ge  Ge1  1  0.41  0.0  0.41  1.0
  Ge  Ge2  1  0.0  0.41  0.41  1.0
  Te  Te3  1  0.0  0.0  0.0  1.0

data_BaGe2Te
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.83
_cell_length_b   6.83
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaGe2Te
_chemical_formula_sum   'Ba2 Ge4 Te2'
_cell_volume   224.74
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Ba  Ba0  2  0.41  0.0  0.0  1.0
  Ge  Ge1  4  0.21  0.21  0.41  1.0
  Te  Te2  2  0.0  0.0  0.0  1.0

Ba Ge Ge Te
BaGe2Te is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BaGe2Te clusters. Ba(1) is bonded in a 3-coordinate geometry to two equivalent Ge(1) and one Te(1) atom. Both Ba(1)-Ge(1) bond lengths are 2.81 Å. The Ba(1)-Te(1) bond length is 2.82 Å. Ge(1) is bonded in a 1-coordinate geometry to one Ba(1) atom. Te(1) is bonded in a 1-coordinate geometry to one Ba(1) atom.