data_CrSiGe2
_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   139.43
_cell_angle_beta   123.83
_cell_angle_gamma   71.57
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrSiGe2
_chemical_formula_sum   'Cr1 Si1 Ge2'
_cell_volume   58.54
_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  0.0  0.0  0.89  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.66  0.0  0.9  1.0
  Ge  Ge2  1  0.0  0.26  1.0  1.0

data_CrSiGe2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.33
_cell_length_b   4.52
_cell_length_c   4.8
_cell_angle_alpha   118.09
_cell_angle_beta   110.29
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrSiGe2
_chemical_formula_sum   'Cr1 Si1 Ge2'
_cell_volume   58.54
_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  0.0  0.89  0.89  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0
  Ge  Ge2  1  0.0  0.9  0.23  1.0
  Ge  Ge3  1  0.74  0.74  0.74  1.0

Cr Si Ge Ge
CrGe2Si crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CrGe2Si cluster. Cr(1) is bonded in a bent 120 degrees geometry to one Ge(2) and one Si(1) atom. The Cr(1)-Ge(2) bond length is 0.93 Å. The Cr(1)-Si(1) bond length is 0.51 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a single-bond geometry to one Si(1) atom. The Ge(1)-Si(1) bond length is 1.40 Å. In the second Ge site, Ge(2) is bonded in a single-bond geometry to one Cr(1) atom. Si(1) is bonded in a distorted single-bond geometry to one Cr(1) and one Ge(1) atom.