data_BaNb2Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.96
_cell_length_b   4.96
_cell_length_c   3.13
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaNb2Co
_chemical_formula_sum   'Ba1 Nb2 Co1'
_cell_volume   76.81
_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  0.48  0.48  0.0  1.0
  Nb  Nb2  1  0.0  0.48  0.56  1.0
  Nb  Nb3  1  0.48  0.0  0.56  1.0
  Co  Co1  1  0.0  0.0  0.0  1.0

data_BaNb2Co
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.01
_cell_length_b   7.01
_cell_length_c   3.13
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BaNb2Co
_chemical_formula_sum   'Ba2 Nb4 Co2'
_cell_volume   153.61
_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  0.48  0.0  0.0  1.0
  Nb  Nb1  4  0.24  0.24  0.56  1.0
  Co  Co2  2  0.0  0.0  0.0  1.0

Ba Nb Nb Co
BaNb2Co crystallizes in the monoclinic Cm space group. Ba(1) is bonded in a 8-coordinate geometry to eight equivalent Nb(1) atoms. There are a spread of Ba(1)-Nb(1) bond distances ranging from 2.74-3.13 Å. Nb(1) is bonded in a 8-coordinate geometry to four equivalent Ba(1) and four equivalent Co(1) atoms. There are a spread of Nb(1)-Co(1) bond distances ranging from 2.74-3.13 Å. Co(1) is bonded in a 8-coordinate geometry to eight equivalent Nb(1) atoms.