data_NaCrAg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.94
_cell_length_b   4.94
_cell_length_c   3.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCrAg2
_chemical_formula_sum   'Na1 Cr1 Ag2'
_cell_volume   76.63
_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
  Na  Na3  1  0.0  0.0  0.0  1.0
  Cr  Cr2  1  0.47  0.47  0.0  1.0
  Ag  Ag0  1  0.0  0.47  0.57  1.0
  Ag  Ag1  1  0.47  0.0  0.57  1.0

data_NaCrAg2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.99
_cell_length_b   6.99
_cell_length_c   3.14
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaCrAg2
_chemical_formula_sum   'Na2 Cr2 Ag4'
_cell_volume   153.25
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Cr  Cr1  2  0.47  0.0  0.0  1.0
  Ag  Ag2  4  0.23  0.23  0.57  1.0

Na Cr Ag Ag
NaCrAg2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 8-coordinate geometry to eight equivalent Ag(1) atoms. There are a spread of Na(1)-Ag(1) bond distances ranging from 2.68-3.17 Å. Cr(1) is bonded in a 8-coordinate geometry to eight equivalent Ag(1) atoms. There are a spread of Cr(1)-Ag(1) bond distances ranging from 2.68-3.17 Å. Ag(1) is bonded in a 8-coordinate geometry to four equivalent Na(1) and four equivalent Cr(1) atoms.