data_CoGe2Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.84
_cell_length_b   7.84
_cell_length_c   7.84
_cell_angle_alpha   21.36
_cell_angle_beta   21.36
_cell_angle_gamma   21.36
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoGe2Ir
_chemical_formula_sum   'Co1 Ge2 Ir1'
_cell_volume   55.95
_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
  Co  Co0  1  0.0  0.0  0.0  1.0
  Ge  Ge1  1  0.0  0.0  0.87  1.0
  Ge  Ge2  1  0.0  0.0  0.09  1.0
  Ir  Ir3  1  0.0  0.0  0.48  1.0

data_CoGe2Ir
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.03
_cell_length_b   2.91
_cell_length_c   7.84
_cell_angle_alpha   90.0
_cell_angle_beta   102.36
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CoGe2Ir
_chemical_formula_sum   'Co2 Ge4 Ir2'
_cell_volume   111.91
_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
  Co  Co0  2  0.0  0.0  0.0  1.0
  Ge  Ge1  2  0.0  0.0  0.13  1.0
  Ge  Ge2  2  0.0  0.0  0.91  1.0
  Ir  Ir3  2  0.0  0.0  0.52  1.0

Co Ge Ge Ir
IrCoGe2 crystallizes in the monoclinic Cm space group. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded to six Ir(1,1); one Ge(1); and one Ge(2) atom to form a mixture of distorted edge and corner-sharing IrGe2Ir6 hexagonal bipyramids. All Ir(1)-Ir(1,1) bond lengths are 2.91 Å. The Ir(1)-Ge(1) bond length is 3.06 Å. The Ir(1)-Ge(2) bond length is 3.06 Å. In the second Ir site, Ir(1) is bonded to six Ir(1,1); one Ge(1); and one Ge(2) atom to form a mixture of distorted edge and corner-sharing IrGe2Ir6 hexagonal bipyramids. Both Ir(1)-Ir(1) bond lengths are 2.91 Å. The Ir(1)-Ge(1) bond length is 3.06 Å. The Ir(1)-Ge(2) bond length is 3.06 Å. Co(1) is bonded in a linear geometry to one Ge(1) and one Ge(2) atom. The Co(1)-Ge(1) bond length is 0.99 Å. The Co(1)-Ge(2) bond length is 0.73 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a single-bond geometry to one Ir(1) and one Co(1) atom. In the second Ge site, Ge(2) is bonded in a single-bond geometry to one Ir(1) and one Co(1) atom.