data_MgAlAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.57
_cell_length_b   4.57
_cell_length_c   3.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgAlAg
_chemical_formula_sum   'Mg1 Al1 Ag1'
_cell_volume   55.86
_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
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Al  Al1  1  0.0  0.64  0.55  1.0
  Ag  Ag0  1  0.28  0.32  0.55  1.0

data_MgAlAg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.09
_cell_length_b   4.57
_cell_length_c   4.57
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MgAlAg
_chemical_formula_sum   'Mg1 Al1 Ag1'
_cell_volume   55.86
_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
  Mg  Mg0  1  0.0  0.0  0.0  1.0
  Al  Al1  1  0.55  0.0  0.64  1.0
  Ag  Ag2  1  0.55  0.28  0.32  1.0

Mg Al Ag
Mg Al Ag 0 1 o - - 0 1 o - o 0 2 o o - 0 2 o o o 1 2 o + o 1 2 o o o 
AgAlMg crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Al(1) atoms. There is one shorter (1.97 Å) and one longer (2.18 Å) Mg(1)-Ag(1) bond length. There is one shorter (2.17 Å) and one longer (2.37 Å) Mg(1)-Al(1) bond length. Ag(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Al(1) atoms. There is one shorter (2.38 Å) and one longer (2.84 Å) Ag(1)-Al(1) bond length. Al(1) is bonded in a 4-coordinate geometry to two equivalent Mg(1) and two equivalent Ag(1) atoms.