data_Mn3Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.76
_cell_length_b   4.76
_cell_length_c   4.76
_cell_angle_alpha   116.8
_cell_angle_beta   116.8
_cell_angle_gamma   116.8
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn3Ge
_chemical_formula_sum   'Mn3 Ge1'
_cell_volume   49.18
_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
  Mn  Mn1  1  0.0  0.34  0.86  1.0
  Mn  Mn2  1  0.97  0.83  0.86  1.0
  Mn  Mn3  1  0.03  0.83  0.86  1.0
  Ge  Ge0  1  0.0  0.0  0.0  1.0

data_Mn3Ge
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.59
_cell_length_b   4.76
_cell_length_c   4.76
_cell_angle_alpha   116.8
_cell_angle_beta   100.43
_cell_angle_gamma   100.43
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn3Ge
_chemical_formula_sum   'Mn3 Ge1'
_cell_volume   49.18
_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
  Mn  Mn0  1  0.86  0.83  0.03  1.0
  Mn  Mn1  1  0.86  0.89  0.03  1.0
  Mn  Mn2  1  0.86  0.86  0.52  1.0
  Ge  Ge3  1  0.0  0.0  0.0  1.0

Mn Mn Mn Ge
Mn3Ge crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Mn3Ge cluster. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted single-bond geometry to one Ge(1) atom. The Mn(1)-Ge(1) bond length is 2.01 Å. In the second Mn site, Mn(2) is bonded in a distorted bent 150 degrees geometry to one Mn(3) and one Ge(1) atom. The Mn(2)-Mn(3) bond length is 0.27 Å. The Mn(2)-Ge(1) bond length is 0.67 Å. In the third Mn site, Mn(3) is bonded in a single-bond geometry to one Mn(2) atom. Ge(1) is bonded in a single-bond geometry to one Mn(1) and one Mn(2) atom.