data_Zr5Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.8
_cell_length_b   5.8
_cell_length_c   5.8
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zr5Ag
_chemical_formula_sum   'Zr5 Ag1'
_cell_volume   137.91
_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
  Zr  Zr1  1  0.06  0.06  0.14  1.0
  Zr  Zr2  1  0.0  0.0  0.0  1.0
  Zr  Zr3  1  0.14  0.06  0.06  1.0
  Zr  Zr4  1  0.14  0.14  0.14  1.0
  Zr  Zr5  1  0.06  0.14  0.06  1.0
  Ag  Ag0  1  0.05  0.05  0.05  1.0

data_Zr5Ag
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.8
_cell_length_b   5.8
_cell_length_c   14.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Zr5Ag
_chemical_formula_sum   'Zr15 Ag3'
_cell_volume   413.73
_cell_formula_units_Z   3
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  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+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
  Zr  Zr0  9  0.03  0.05  0.91  1.0
  Zr  Zr1  3  0.0  0.0  0.0  1.0
  Zr  Zr2  3  0.0  0.0  0.86  1.0
  Ag  Ag3  3  0.0  0.0  0.95  1.0

Zr Zr Zr Zr Zr Ag
Zr Zr Zr Zr Zr Ag 0 4 o o o 0 2 o o o 0 3 o o o 0 5 o o o 1 5 o o o 2 4 o o o 2 3 o o o 2 5 o o o 3 4 o o o 4 5 o o o 
Zr5Ag is Copper structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three Zr5Ag clusters. There are three inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a distorted single-bond geometry to one Zr(3) and one Ag(1) atom. The Zr(1)-Zr(3) bond length is 0.82 Å. The Zr(1)-Ag(1) bond length is 0.59 Å. In the second Zr site, Zr(2) is bonded in a single-bond geometry to one Ag(1) atom. The Zr(2)-Ag(1) bond length is 0.72 Å. In the third Zr site, Zr(3) is bonded in a 3-coordinate geometry to three equivalent Zr(1) atoms. Ag(1) is bonded in a 4-coordinate geometry to one Zr(2) and three equivalent Zr(1) atoms.