data_Zn2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.29
_cell_length_b   6.29
_cell_length_c   6.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zn2Ag
_chemical_formula_sum   'Zn8 Ag4'
_cell_volume   249.19
_cell_formula_units_Z   4
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
  Zn  Zn4  1  0.79  0.94  0.5  1.0
  Zn  Zn5  1  0.79  0.5  0.36  1.0
  Zn  Zn6  1  0.36  0.79  0.5  1.0
  Zn  Zn7  1  0.36  0.36  0.36  1.0
  Zn  Zn8  1  0.94  0.94  0.94  1.0
  Zn  Zn9  1  0.94  0.5  0.79  1.0
  Zn  Zn10  1  0.5  0.79  0.94  1.0
  Zn  Zn11  1  0.5  0.36  0.79  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.0  0.15  0.15  1.0
  Ag  Ag2  1  0.15  0.0  0.15  1.0
  Ag  Ag3  1  0.15  0.15  0.0  1.0

data_Zn2Ag
_symmetry_space_group_name_H-M   R3
_cell_length_a   8.9
_cell_length_b   8.9
_cell_length_c   10.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   146
_chemical_formula_structural   Zn2Ag
_chemical_formula_sum   'Zn24 Ag12'
_cell_volume   747.58
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  'x+1/3, y+2/3, z+2/3'
  5  '-y+1/3, x-y+2/3, z+2/3'
  6  '-x+y+1/3, -x+2/3, z+2/3'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
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
  Zn  Zn0  9  0.05  0.24  0.74  1.0
  Zn  Zn1  9  0.14  0.71  0.22  1.0
  Zn  Zn2  3  0.0  0.0  0.36  1.0
  Zn  Zn3  3  0.0  0.0  0.94  1.0
  Ag  Ag4  9  0.05  0.1  0.1  1.0
  Ag  Ag5  3  0.0  0.0  0.0  1.0

Zn Zn Zn Zn Zn Zn Zn Zn Ag Ag Ag Ag
AgZn2 crystallizes in the trigonal R3 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a single-bond geometry to three equivalent Ag(2) and one Zn(4) atom. All Ag(1)-Ag(2) bond lengths are 1.30 Å. The Ag(1)-Zn(4) bond length is 0.69 Å. In the second Ag site, Ag(2) is bonded in a 7-coordinate geometry to one Ag(1), two equivalent Ag(2), one Zn(2), one Zn(3), and two equivalent Zn(1) atoms. Both Ag(2)-Ag(2) bond lengths are 1.30 Å. The Ag(2)-Zn(2) bond length is 2.92 Å. The Ag(2)-Zn(3) bond length is 2.92 Å. There is one shorter (2.92 Å) and one longer (3.20 Å) Ag(2)-Zn(1) bond length. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 5-coordinate geometry to two equivalent Ag(2), one Zn(4), and two equivalent Zn(2) atoms. The Zn(1)-Zn(4) bond length is 2.88 Å. Both Zn(1)-Zn(2) bond lengths are 2.88 Å. In the second Zn site, Zn(2) is bonded in a 4-coordinate geometry to one Ag(2), one Zn(3), and two equivalent Zn(1) atoms. The Zn(2)-Zn(3) bond length is 2.88 Å. In the third Zn site, Zn(3) is bonded in a 6-coordinate geometry to three equivalent Ag(2) and three equivalent Zn(2) atoms. In the fourth Zn site, Zn(4) is bonded in a single-bond geometry to one Ag(1) and three equivalent Zn(1) atoms.