data_NbCo2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.75
_cell_length_b   2.75
_cell_length_c   7.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbCo2Ag
_chemical_formula_sum   'Nb1 Co2 Ag1'
_cell_volume   57.4
_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
  Nb  Nb3  1  0.0  0.0  0.57  1.0
  Co  Co1  1  0.0  0.0  0.29  1.0
  Co  Co2  1  0.37  0.37  0.68  1.0
  Ag  Ag0  1  0.37  0.37  0.89  1.0

data_NbCo2Ag
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.88
_cell_length_b   3.88
_cell_length_c   7.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NbCo2Ag
_chemical_formula_sum   'Nb2 Co4 Ag2'
_cell_volume   114.81
_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
  Nb  Nb0  2  0.0  0.0  0.57  1.0
  Co  Co1  2  0.0  0.0  0.29  1.0
  Co  Co2  2  0.37  0.0  0.68  1.0
  Ag  Ag3  2  0.37  0.0  0.89  1.0

Nb Co Co Ag
Nb Co Co Ag 0 2 o o o 0 1 o o o 1 1 + o o 1 1 o + o 2 3 o o o 