data_Mg2AgAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.79
_cell_length_b   3.79
_cell_length_c   5.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mg2AgAs
_chemical_formula_sum   'Mg2 Ag1 As1'
_cell_volume   80.14
_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  0.9  0.9  0.35  1.0
  Mg  Mg3  1  0.0  0.0  0.62  1.0
  Ag  Ag0  1  0.9  0.9  0.58  1.0
  As  As1  1  0.0  0.0  0.39  1.0

data_Mg2AgAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   5.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mg2AgAs
_chemical_formula_sum   'Mg4 Ag2 As2'
_cell_volume   160.28
_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
  Mg  Mg0  2  0.0  0.0  0.62  1.0
  Mg  Mg1  2  0.4  0.5  0.35  1.0
  Ag  Ag2  2  0.4  0.5  0.58  1.0
  As  As3  2  0.0  0.0  0.39  1.0

Mg Mg Ag As
Mg2AgAs is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Mg2AgAs clusters. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted single-bond geometry to one As(1) atom. The Mg(1)-As(1) bond length is 0.61 Å. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to one Ag(1) and one As(1) atom. The Mg(2)-Ag(1) bond length is 0.59 Å. The Mg(2)-As(1) bond length is 1.24 Å. Ag(1) is bonded in a distorted single-bond geometry to one Mg(2) atom. As(1) is bonded in a distorted single-bond geometry to one Mg(1) and one Mg(2) atom.