data_CrSiGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.28
_cell_length_b   4.28
_cell_length_c   2.64
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrSiGe
_chemical_formula_sum   'Cr1 Si1 Ge1'
_cell_volume   41.86
_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
  Cr  Cr0  1  1.0  0.47  0.25  1.0
  Si  Si2  1  0.0  0.0  0.02  1.0
  Ge  Ge1  1  0.14  0.24  0.01  1.0

data_CrSiGe
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.64
_cell_length_b   4.28
_cell_length_c   4.28
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrSiGe
_chemical_formula_sum   'Cr1 Si1 Ge1'
_cell_volume   41.86
_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
  Cr  Cr0  1  0.25  1.0  0.47  1.0
  Si  Si1  1  0.02  0.0  0.0  1.0
  Ge  Ge2  1  0.01  0.14  0.24  1.0

Cr Si Ge
Cr Si Ge 0 2 + o o 1 2 o o o 
CrGeSi crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CrGeSi cluster. Cr(1) is bonded in a distorted single-bond geometry to one Ge(1) atom. The Cr(1)-Ge(1) bond length is 1.53 Å. Ge(1) is bonded in a bent 120 degrees geometry to one Cr(1) and one Si(1) atom. The Ge(1)-Si(1) bond length is 0.88 Å. Si(1) is bonded in a distorted single-bond geometry to one Ge(1) atom.