data_Ba2MgGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.86
_cell_length_b   4.52
_cell_length_c   8.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2MgGe
_chemical_formula_sum   'Ba2 Mg1 Ge1'
_cell_volume   147.31
_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  0.93  0.26  0.42  1.0
  Ba  Ba1  1  0.93  0.26  0.03  1.0
  Mg  Mg3  1  0.0  0.0  0.0  1.0
  Ge  Ge2  1  0.0  0.0  0.22  1.0

data_Ba2MgGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.86
_cell_length_b   4.52
_cell_length_c   8.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2MgGe
_chemical_formula_sum   'Ba2 Mg1 Ge1'
_cell_volume   147.31
_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  0.93  0.26  0.03  1.0
  Ba  Ba1  1  0.93  0.26  0.42  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Ge  Ge3  1  0.0  0.0  0.22  1.0

Ba Ba Mg Ge
Ba2MgGe is alpha Niobium phosphide-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Ba2MgGe cluster. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a single-bond geometry to one Ge(1) atom. The Ba(1)-Ge(1) bond length is 2.03 Å. In the second Ba site, Ba(2) is bonded in a 2-coordinate geometry to one Mg(1) and one Ge(1) atom. The Ba(2)-Mg(1) bond length is 1.22 Å. The Ba(2)-Ge(1) bond length is 2.03 Å. Mg(1) is bonded in a 2-coordinate geometry to one Ba(2) and one Ge(1) atom. The Mg(1)-Ge(1) bond length is 1.90 Å. Ge(1) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Mg(1) atom.