data_Mn2NbGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.02
_cell_length_b   3.02
_cell_length_c   5.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2NbGe
_chemical_formula_sum   'Mn2 Nb1 Ge1'
_cell_volume   53.59
_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  0.04  0.0  0.86  1.0
  Mn  Mn2  1  0.0  0.0  0.51  1.0
  Nb  Nb3  1  0.04  0.0  0.13  1.0
  Ge  Ge0  1  0.0  0.0  0.27  1.0

data_Mn2NbGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.02
_cell_length_b   3.02
_cell_length_c   5.91
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   94.75
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2NbGe
_chemical_formula_sum   'Mn2 Nb1 Ge1'
_cell_volume   53.59
_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  0.0  0.0  0.51  1.0
  Mn  Mn1  1  0.04  0.0  0.86  1.0
  Nb  Nb2  1  0.04  0.0  0.13  1.0
  Ge  Ge3  1  0.0  0.0  0.27  1.0

Mn Mn Nb Ge
NbMn2Ge crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NbMn2Ge cluster. Nb(1) is bonded in a distorted single-bond geometry to one Mn(1) and one Ge(1) atom. The Nb(1)-Mn(1) bond length is 1.57 Å. The Nb(1)-Ge(1) bond length is 0.83 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted single-bond geometry to one Nb(1) atom. In the second Mn site, Mn(2) is bonded in a single-bond geometry to one Ge(1) atom. The Mn(2)-Ge(1) bond length is 1.41 Å. Ge(1) is bonded in a linear geometry to one Nb(1) and one Mn(2) atom.