data_CaCd2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.32
_cell_length_b   4.32
_cell_length_c   4.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CaCd2As
_chemical_formula_sum   'Ca1 Cd2 As1'
_cell_volume   92.05
_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  0.0  0.0  1.0
  Cd  Cd2  1  0.0  0.16  0.47  1.0
  Cd  Cd3  1  0.16  0.0  0.47  1.0
  As  As0  1  0.16  0.16  0.0  1.0

data_CaCd2As
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.11
_cell_length_b   6.11
_cell_length_c   4.94
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CaCd2As
_chemical_formula_sum   'Ca2 Cd4 As2'
_cell_volume   184.09
_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  2  0.0  0.0  0.0  1.0
  Cd  Cd1  4  0.08  0.08  0.47  1.0
  As  As2  2  0.16  0.0  0.0  1.0

Ca Cd Cd As
CaAs(Cd)2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CaAs clusters and two Cd clusters. In each CaAs cluster, Ca(1) is bonded in a single-bond geometry to one As(1) atom. The Ca(1)-As(1) bond length is 0.97 Å. As(1) is bonded in a single-bond geometry to one Ca(1) atom. In each Cd cluster, Cd(1) is bonded in a distorted single-bond geometry to one Cd(1) atom. The Cd(1)-Cd(1) bond length is 0.97 Å.