data_BaCoOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.04
_cell_length_b   3.04
_cell_length_c   8.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaCoOs2
_chemical_formula_sum   'Ba1 Co1 Os2'
_cell_volume   74.06
_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
  Ba  Ba0  1  0.0  0.0  0.01  1.0
  Co  Co1  1  0.0  0.0  0.0  1.0
  Os  Os2  1  0.52  0.52  0.3  1.0
  Os  Os3  1  0.52  0.52  0.72  1.0

data_BaCoOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.3
_cell_length_b   4.3
_cell_length_c   8.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaCoOs2
_chemical_formula_sum   'Ba2 Co2 Os4'
_cell_volume   148.12
_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
  Ba  Ba0  2  0.0  0.0  0.01  1.0
  Co  Co1  2  0.0  0.0  0.0  1.0
  Os  Os2  2  0.02  0.5  0.3  1.0
  Os  Os3  2  0.02  0.5  0.72  1.0

Ba Co Os Os
Ba Co Os Os 0 1 o o o 0 2 o o o 0 2 o - o 0 2 - o o 0 2 - - o 0 3 o o - 0 3 o - - 0 3 - o - 0 3 - - - 1 2 o o o 1 2 o - o 1 2 - o o 1 2 - - o 1 3 o o - 1 3 o - - 1 3 - o - 1 3 - - - 2 2 + o o 2 2 o + o 2 3 o o o 3 3 + o o 3 3 o + o 
BaOs2Co crystallizes in the monoclinic Cm space group. Ba(1) is bonded in a single-bond geometry to four equivalent Os(1) and one Co(1) atom. There are a spread of Ba(1)-Os(1) bond distances ranging from 3.10-3.21 Å. The Ba(1)-Co(1) bond length is 0.10 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Os(2), and four equivalent Os(1) atoms. The Os(1)-Os(2) bond length is 3.40 Å. All Os(1)-Os(1) bond lengths are 3.04 Å. In the second Os site, Os(2) is bonded in a 9-coordinate geometry to one Os(1), four equivalent Os(2), and four equivalent Co(1) atoms. All Os(2)-Os(2) bond lengths are 3.04 Å. There are a spread of Os(2)-Co(1) bond distances ranging from 3.03-3.14 Å. Co(1) is bonded in a single-bond geometry to one Ba(1) and four equivalent Os(2) atoms.