data_Ni2AgO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.99
_cell_length_b   5.99
_cell_length_c   5.99
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ni2AgO4
_chemical_formula_sum   'Ni4 Ag2 O8'
_cell_volume   152.26
_cell_formula_units_Z   2
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
  Ni  Ni2  1  0.18  0.18  0.3  1.0
  Ni  Ni3  1  0.18  0.3  0.18  1.0
  Ni  Ni4  1  0.3  0.18  0.18  1.0
  Ni  Ni5  1  0.3  0.3  0.3  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.12  0.12  0.12  1.0
  O  O6  1  0.34  0.34  0.34  1.0
  O  O7  1  0.34  0.14  0.14  1.0
  O  O8  1  0.14  0.34  0.14  1.0
  O  O9  1  0.46  0.46  0.26  1.0
  O  O10  1  0.14  0.14  0.34  1.0
  O  O11  1  0.46  0.26  0.46  1.0
  O  O12  1  0.26  0.26  0.26  1.0
  O  O13  1  0.26  0.46  0.46  1.0

data_Ni2AgO4
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.99
_cell_length_b   5.99
_cell_length_c   14.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Ni2AgO4
_chemical_formula_sum   'Ni12 Ag6 O24'
_cell_volume   456.77
_cell_formula_units_Z   6
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
  Ni  Ni0  9  0.04  0.08  0.78  1.0
  Ni  Ni1  3  0.0  0.0  0.7  1.0
  Ag  Ag2  3  0.0  0.0  0.0  1.0
  Ag  Ag3  3  0.0  0.0  0.88  1.0
  O  O4  9  0.07  0.13  0.79  1.0
  O  O5  9  0.13  0.07  0.61  1.0
  O  O6  3  0.0  0.0  0.66  1.0
  O  O7  3  0.0  0.0  0.74  1.0

Ni Ni Ni Ni Ag Ag O O O O O O O O
Ni2AgO4 is Copper structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three Ni2AgO4 clusters. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 1-coordinate geometry to one O(2) and one O(4) atom. The Ni(1)-O(2) bond length is 0.33 Å. The Ni(1)-O(4) bond length is 0.72 Å. In the second Ni site, Ni(2) is bonded in a linear geometry to one O(1) and one O(4) atom. The Ni(2)-O(1) bond length is 0.58 Å. The Ni(2)-O(4) bond length is 0.58 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a single-bond geometry to one Ag(2) atom. The Ag(1)-Ag(2) bond length is 1.75 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one Ag(1) and three equivalent O(2) atoms. All Ag(2)-O(2) bond lengths are 1.44 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Ni(2) and three equivalent O(3) atoms. All O(1)-O(3) bond lengths are 1.04 Å. In the second O site, O(2) is bonded in a single-bond geometry to one Ni(1) and one Ag(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one O(1) and two equivalent O(3) atoms. Both O(3)-O(3) bond lengths are 1.19 Å. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Ni(2) and three equivalent Ni(1) atoms.