data_GaNiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.92
_cell_length_b   2.92
_cell_length_c   7.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.22
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaNiGe2
_chemical_formula_sum   'Ga1 Ni1 Ge2'
_cell_volume   64.36
_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
  Ga  Ga0  1  0.0  0.0  0.78  1.0
  Ni  Ni3  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.04  0.0  0.04  1.0
  Ge  Ge2  1  0.04  0.0  0.51  1.0

data_GaNiGe2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   2.92
_cell_length_b   2.92
_cell_length_c   7.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   GaNiGe2
_chemical_formula_sum   'Ga1 Ni1 Ge2'
_cell_volume   64.37
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Ga  Ga0  1  0.0  0.0  0.78  1.0
  Ni  Ni1  1  0.0  0.0  0.0  1.0
  Ge  Ge2  1  0.04  0.0  0.04  1.0
  Ge  Ge3  1  0.04  0.0  0.51  1.0

Ga Ni Ge Ge
NiGaGe2 crystallizes in the monoclinic Pm space group. The structure is zero-dimensional and consists of one NiGaGe2 cluster. Ni(1) is bonded in a distorted single-bond geometry to one Ga(1) and one Ge(1) atom. The Ni(1)-Ga(1) bond length is 1.67 Å. The Ni(1)-Ge(1) bond length is 0.35 Å. Ga(1) is bonded in a linear geometry to one Ni(1) and one Ge(2) atom. The Ga(1)-Ge(2) bond length is 2.01 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a single-bond geometry to one Ni(1) atom. In the second Ge site, Ge(2) is bonded in a single-bond geometry to one Ga(1) atom.