data_NaHfGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.61
_cell_length_b   6.61
_cell_length_c   6.61
_cell_angle_alpha   154.02
_cell_angle_beta   145.74
_cell_angle_gamma   43.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaHfGe
_chemical_formula_sum   'Na1 Hf1 Ge1'
_cell_volume   71.02
_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
  Na  Na2  1  0.0  0.0  0.31  1.0
  Hf  Hf1  1  0.0  0.0  0.71  1.0
  Ge  Ge0  1  0.0  0.0  0.26  1.0

data_NaHfGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.97
_cell_length_b   3.89
_cell_length_c   6.61
_cell_angle_alpha   107.13
_cell_angle_beta   102.99
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaHfGe
_chemical_formula_sum   'Na1 Hf1 Ge1'
_cell_volume   71.02
_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
  Na  Na0  1  0.69  0.69  0.69  1.0
  Hf  Hf1  1  0.29  0.29  0.29  1.0
  Ge  Ge2  1  0.74  0.74  0.74  1.0

Na Hf Ge
NaHfGe crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NaHfGe cluster. Na(1) is bonded in a single-bond geometry to one Hf(1) and one Ge(1) atom. The Na(1)-Hf(1) bond length is 2.59 Å. The Na(1)-Ge(1) bond length is 0.37 Å. Hf(1) is bonded in a distorted single-bond geometry to one Na(1) atom. Ge(1) is bonded in a single-bond geometry to one Na(1) atom.