data_Mn2ZnGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   4.55
_cell_angle_alpha   130.57
_cell_angle_beta   130.57
_cell_angle_gamma   72.5
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2ZnGe
_chemical_formula_sum   'Mn2 Zn1 Ge1'
_cell_volume   53.27
_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  0.9  0.84  1.0
  Mn  Mn2  1  0.9  0.0  0.84  1.0
  Zn  Zn3  1  0.0  0.0  0.0  1.0
  Ge  Ge0  1  0.0  0.0  0.67  1.0

data_Mn2ZnGe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.39
_cell_length_b   5.39
_cell_length_c   4.55
_cell_angle_alpha   90.0
_cell_angle_beta   126.25
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mn2ZnGe
_chemical_formula_sum   'Mn4 Zn2 Ge2'
_cell_volume   106.54
_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
  Mn  Mn0  4  0.05  0.05  0.93  1.0
  Zn  Zn1  2  0.0  0.0  0.0  1.0
  Ge  Ge2  2  0.0  0.0  0.67  1.0

Mn Mn Zn Ge
Mn2ZnGe crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Mn2ZnGe clusters. Mn(1) is bonded in a 3-coordinate geometry to one Mn(1), one Zn(1), and one Ge(1) atom. The Mn(1)-Mn(1) bond length is 0.52 Å. The Mn(1)-Zn(1) bond length is 0.57 Å. The Mn(1)-Ge(1) bond length is 1.08 Å. Zn(1) is bonded in a 2-coordinate geometry to two equivalent Mn(1) atoms. Ge(1) is bonded in a 2-coordinate geometry to two equivalent Mn(1) atoms.