data_Mg2AgBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.44
_cell_length_b   4.34
_cell_length_c   6.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2AgBi
_chemical_formula_sum   'Mg2 Ag1 Bi1'
_cell_volume   93.91
_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  0.02  1.0
  Mg  Mg3  1  0.72  0.17  0.76  1.0
  Ag  Ag0  1  0.0  0.0  0.81  1.0
  Bi  Bi1  1  0.72  0.17  0.82  1.0

data_Mg2AgBi
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.44
_cell_length_b   4.34
_cell_length_c   6.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2AgBi
_chemical_formula_sum   'Mg2 Ag1 Bi1'
_cell_volume   93.91
_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  0.02  1.0
  Mg  Mg1  1  0.72  0.17  0.76  1.0
  Ag  Ag2  1  0.0  0.0  0.81  1.0
  Bi  Bi3  1  0.72  0.17  0.82  1.0

Mg Mg Ag Bi
Mg Mg Ag Bi 0 2 o o - 1 3 o o o 1 2 + o o 2 3 - o o 
AgMgMgBi crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one bismuth;magnesium molecule and one AgMg cluster. In the AgMg cluster, Mg(1) is bonded in a distorted single-bond geometry to one Ag(1) atom. The Mg(1)-Ag(1) bond length is 1.34 Å. Ag(1) is bonded in a 1-coordinate geometry to one Mg(1) atom.