data_Ca2CrRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.75
_cell_length_b   4.75
_cell_length_c   3.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2CrRh
_chemical_formula_sum   'Ca2 Cr1 Rh1'
_cell_volume   89.16
_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  Ca0  1  0.37  0.0  0.98  1.0
  Ca  Ca1  1  0.0  0.37  0.98  1.0
  Cr  Cr2  1  0.0  0.0  0.0  1.0
  Rh  Rh3  1  0.37  0.37  0.0  1.0

data_Ca2CrRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.71
_cell_length_b   6.71
_cell_length_c   3.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ca2CrRh
_chemical_formula_sum   'Ca4 Cr2 Rh2'
_cell_volume   178.31
_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  0.19  0.19  0.98  1.0
  Cr  Cr1  2  0.0  0.0  0.0  1.0
  Rh  Rh2  2  0.37  0.0  -0.0  1.0

Ca Ca Cr Rh
Ca2CrRh is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ca2CrRh clusters. Ca(1) is bonded in a distorted L-shaped geometry to one Cr(1) and one Rh(1) atom. The Ca(1)-Cr(1) bond length is 1.77 Å. The Ca(1)-Rh(1) bond length is 1.77 Å. Cr(1) is bonded in a distorted L-shaped geometry to two equivalent Ca(1) atoms. Rh(1) is bonded in a distorted L-shaped geometry to two equivalent Ca(1) atoms.