data_MnGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   6.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnGe
_chemical_formula_sum   'Mn4 Ge4'
_cell_volume   111.76
_cell_formula_units_Z   4
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  Mn4  1  0.15  0.24  0.65  1.0
  Mn  Mn5  1  0.0  0.49  0.13  1.0
  Mn  Mn6  1  0.0  0.49  0.31  1.0
  Mn  Mn7  1  0.15  0.24  0.83  1.0
  Ge  Ge0  1  0.0  0.0  0.74  1.0
  Ge  Ge1  1  0.0  0.0  0.22  1.0
  Ge  Ge2  1  0.15  0.24  0.22  1.0
  Ge  Ge3  1  0.0  0.49  0.74  1.0

data_MnGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.31
_cell_length_b   4.31
_cell_length_c   6.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnGe
_chemical_formula_sum   'Mn4 Ge4'
_cell_volume   111.76
_cell_formula_units_Z   4
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  0.0  0.49  0.13  1.0
  Mn  Mn1  1  0.0  0.49  0.31  1.0
  Mn  Mn2  1  0.15  0.24  0.65  1.0
  Mn  Mn3  1  0.15  0.24  0.83  1.0
  Ge  Ge4  1  0.0  0.0  0.22  1.0
  Ge  Ge5  1  0.0  0.0  0.74  1.0
  Ge  Ge6  1  0.0  0.49  0.74  1.0
  Ge  Ge7  1  0.15  0.24  0.22  1.0

Mn Mn Mn Mn Ge Ge Ge Ge
Mn Mn Mn Mn Ge Ge Ge Ge 0 4 o o o 0 3 o o o 0 7 o o o 1 2 o o o 3 4 o o o 3 7 o o o 5 6 o o o 
MnGe crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of two MnGe clusters. Mn(1,4) is bonded in a 3-coordinate geometry to one Mn(1,4); one Ge(1); and one Ge(4) atom. The Mn(1,4)-Mn(1,4) bond length is 1.24 Å. The Mn(1,4)-Ge(1) bond length is 1.11 Å. The Mn(1,4)-Ge(4) bond length is 1.61 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 2-coordinate geometry to two equivalent Mn(1,4) atoms. In the second Ge site, Ge(4) is bonded in a 2-coordinate geometry to two equivalent Mn(1,4) atoms.