data_MnCu2Ag
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.32
_cell_length_b   4.32
_cell_length_c   3.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   MnCu2Ag
_chemical_formula_sum   'Mn1 Cu2 Ag1'
_cell_volume   56.81
_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
  Mn  Mn3  1  0.0  0.0  0.0  1.0
  Cu  Cu1  1  0.16  0.0  0.52  1.0
  Cu  Cu2  1  0.0  0.16  0.52  1.0
  Ag  Ag0  1  0.16  0.16  0.0  1.0

data_MnCu2Ag
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.11
_cell_length_b   6.11
_cell_length_c   3.05
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   MnCu2Ag
_chemical_formula_sum   'Mn2 Cu4 Ag2'
_cell_volume   113.62
_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
  Mn  Mn0  2  0.0  0.0  0.0  1.0
  Cu  Cu1  4  0.08  0.08  0.52  1.0
  Ag  Ag2  2  0.16  0.0  0.0  1.0

Mn Cu Cu Ag
Mn Cu Cu Ag 0 3 o o o 1 2 o o o 
AgMn(Cu)2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two AgMn clusters and two Cu clusters. In each AgMn cluster, Mn(1) is bonded in a single-bond geometry to one Ag(1) atom. The Mn(1)-Ag(1) bond length is 0.97 Å. Ag(1) is bonded in a single-bond geometry to one Mn(1) atom. In each Cu cluster, Cu(1) is bonded in a distorted single-bond geometry to one Cu(1) atom. The Cu(1)-Cu(1) bond length is 0.97 Å.