data_TiNbGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   4.8
_cell_angle_alpha   128.68
_cell_angle_beta   128.68
_cell_angle_gamma   75.53
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TiNbGe2
_chemical_formula_sum   'Ti1 Nb1 Ge2'
_cell_volume   65.68
_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
  Ti  Ti3  1  0.0  0.0  0.0  1.0
  Nb  Nb2  1  0.0  0.0  0.8  1.0
  Ge  Ge0  1  0.08  0.0  0.9  1.0
  Ge  Ge1  1  0.0  0.08  0.9  1.0

data_TiNbGe2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.88
_cell_length_b   5.88
_cell_length_c   4.8
_cell_angle_alpha   90.0
_cell_angle_beta   127.77
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TiNbGe2
_chemical_formula_sum   'Ti2 Nb2 Ge4'
_cell_volume   131.35
_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
  Ti  Ti0  2  0.0  0.0  0.0  1.0
  Nb  Nb1  2  0.0  0.0  0.8  1.0
  Ge  Ge2  4  0.46  0.46  0.82  1.0

Ti Nb Ge Ge
TiNbGe2 is Copper structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two TiNbGe2 clusters. Ti(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. Both Ti(1)-Ge(1) bond lengths are 0.79 Å. Nb(1) is bonded in a 2-coordinate geometry to two equivalent Ge(1) atoms. Both Nb(1)-Ge(1) bond lengths are 0.39 Å. Ge(1) is bonded in a 3-coordinate geometry to one Ti(1), one Nb(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 0.47 Å.