data_CrFe2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.83
_cell_length_b   8.83
_cell_length_c   8.83
_cell_angle_alpha   17.32
_cell_angle_beta   17.32
_cell_angle_gamma   17.32
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrFe2Ag
_chemical_formula_sum   'Cr1 Fe2 Ag1'
_cell_volume   53.32
_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  Cr1  1  0.0  0.0  0.32  1.0
  Fe  Fe2  1  0.0  0.0  0.05  1.0
  Fe  Fe3  1  0.0  0.0  0.72  1.0
  Ag  Ag0  1  0.0  0.0  0.06  1.0

data_CrFe2Ag
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.61
_cell_length_b   2.66
_cell_length_c   8.83
_cell_angle_alpha   90.0
_cell_angle_beta   100.01
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CrFe2Ag
_chemical_formula_sum   'Cr2 Fe4 Ag2'
_cell_volume   106.64
_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
  Cr  Cr0  2  0.0  0.0  0.68  1.0
  Fe  Fe1  2  0.0  0.0  0.28  1.0
  Fe  Fe2  2  0.0  0.0  0.95  1.0
  Ag  Ag3  2  0.0  0.0  0.94  1.0

Cr Fe Fe Ag
CrFe2Ag crystallizes in the monoclinic Cm space group. Cr(1) is bonded in a distorted single-bond geometry to one Fe(2) and one Ag(1) atom. The Cr(1)-Fe(2) bond length is 3.53 Å. The Cr(1)-Ag(1) bond length is 2.36 Å. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a single-bond geometry to one Fe(2) and one Ag(1) atom. The Fe(1)-Fe(2) bond length is 2.88 Å. The Fe(1)-Ag(1) bond length is 0.06 Å. In the second Fe site, Fe(2) is bonded to one Cr(1), one Fe(1), and six equivalent Fe(2) atoms to form a mixture of distorted corner and edge-sharing FeCrFe7 hexagonal bipyramids. All Fe(2)-Fe(2) bond lengths are 2.66 Å. Ag(1) is bonded in a single-bond geometry to one Cr(1) and one Fe(1) atom.