data_Ca2AgPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.44
_cell_length_b   5.44
_cell_length_c   3.77
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2AgPb
_chemical_formula_sum   'Ca2 Ag1 Pb1'
_cell_volume   111.37
_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
  Ca  Ca1  1  0.0  0.72  0.89  1.0
  Ca  Ca2  1  0.72  0.0  0.89  1.0
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.72  0.72  0.0  1.0

data_Ca2AgPb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.69
_cell_length_b   7.69
_cell_length_c   3.77
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ca2AgPb
_chemical_formula_sum   'Ca4 Ag2 Pb2'
_cell_volume   222.73
_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
  Ca  Ca0  4  0.36  0.36  0.89  1.0
  Ag  Ag1  2  0.0  0.0  0.0  1.0
  Pb  Pb2  2  0.22  0.5  0.0  1.0

Ca Ca Ag Pb
Ca2AgPb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ca2AgPb clusters. Ca(1) is bonded in an L-shaped geometry to one Ag(1) and one Pb(1) atom. The Ca(1)-Ag(1) bond length is 1.60 Å. The Ca(1)-Pb(1) bond length is 1.60 Å. Ag(1) is bonded in an L-shaped geometry to two equivalent Ca(1) atoms. Pb(1) is bonded in an L-shaped geometry to two equivalent Ca(1) atoms.