data_BaSiGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.38
_cell_length_b   6.38
_cell_length_c   6.38
_cell_angle_alpha   147.14
_cell_angle_beta   147.14
_cell_angle_gamma   47.15
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaSiGe
_chemical_formula_sum   'Ba1 Si1 Ge1'
_cell_volume   76.22
_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  0.0  0.0  0.01  1.0
  Si  Si2  1  0.0  0.0  0.3  1.0
  Ge  Ge1  1  0.0  0.0  0.39  1.0

data_BaSiGe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.1
_cell_length_b   5.1
_cell_length_c   6.38
_cell_angle_alpha   90.0
_cell_angle_beta   113.57
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaSiGe
_chemical_formula_sum   'Ba2 Si2 Ge2'
_cell_volume   152.43
_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  0.0  0.0  0.99  1.0
  Si  Si1  2  0.0  0.0  0.7  1.0
  Ge  Ge2  2  0.0  0.0  0.61  1.0

Ba Si Ge
BaGeSi is Cyanogen Chloride-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BaGeSi clusters. Ba(1) is bonded in a single-bond geometry to one Si(1) atom. The Ba(1)-Si(1) bond length is 1.80 Å. Ge(1) is bonded in a single-bond geometry to one Si(1) atom. The Ge(1)-Si(1) bond length is 0.60 Å. Si(1) is bonded in a linear geometry to one Ba(1) and one Ge(1) atom.