data_AlFeAg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   4.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlFeAg2
_chemical_formula_sum   'Al1 Fe1 Ag2'
_cell_volume   62.96
_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
  Al  Al2  1  0.0  0.0  0.0  1.0
  Fe  Fe3  1  0.97  0.97  0.0  1.0
  Ag  Ag0  1  0.97  0.0  0.03  1.0
  Ag  Ag1  1  0.0  0.97  0.03  1.0

data_AlFeAg2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.57
_cell_length_b   5.57
_cell_length_c   4.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlFeAg2
_chemical_formula_sum   'Al2 Fe2 Ag4'
_cell_volume   125.92
_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
  Al  Al0  2  0.0  0.0  0.0  1.0
  Fe  Fe1  2  0.47  0.5  0.0  1.0
  Ag  Ag2  4  0.48  0.48  0.03  1.0

Al Fe Ag Ag
Al Fe Ag Ag 0 1 - - o 0 2 - o o 0 3 o - o 1 3 + o o 1 2 o + o 2 3 + - o 
FeAg2Al is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two FeAg2Al clusters. Fe(1) is bonded in a 3-coordinate geometry to two equivalent Ag(1) and one Al(1) atom. Both Fe(1)-Ag(1) bond lengths are 0.16 Å. The Fe(1)-Al(1) bond length is 0.17 Å. Ag(1) is bonded in a 3-coordinate geometry to one Fe(1), one Ag(1), and one Al(1) atom. The Ag(1)-Ag(1) bond length is 0.17 Å. The Ag(1)-Al(1) bond length is 0.16 Å. Al(1) is bonded in a 3-coordinate geometry to one Fe(1) and two equivalent Ag(1) atoms.