The crystal structure described by CaCd2P2 crystallizes in the trigonal P-3m1 space group. Ca(1) is bonded to six equivalent P(1) atoms to form CaP6 octahedra that share corners with twelve equivalent Cd(1)P4 tetrahedra, edges with six equivalent Ca(1)P6 octahedra, and edges with six equivalent Cd(1)P4 tetrahedra. Cd(1) is bonded to four equivalent P(1) atoms to form distorted CdP4 tetrahedra that share corners with six equivalent Ca(1)P6 octahedra, corners with six equivalent Cd(1)P4 tetrahedra, edges with three equivalent Ca(1)P6 octahedra, and edges with three equivalent Cd(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 15-56°. P(1) is bonded to three equivalent Ca(1) and four equivalent Cd(1) atoms to form a mixture of distorted edge and corner-sharing PCa3Cd4 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Ca(CdP)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.292
_cell_length_b   4.292
_cell_length_c   7.055
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   112.574
_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  0.000  0.000  0.000  1.0
  Cd  Cd1  1  0.333  0.667  0.638  1.0
  Cd  Cd2  1  0.667  0.333  0.362  1.0
  P  P3  1  0.667  0.333  0.759  1.0
  P  P4  1  0.333  0.667  0.241  1.0
[/CIF]
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The crystal structure described by CaCd2P2 crystallizes in the trigonal P-3m1 space group. Ca(1) is bonded to six equivalent P(1) atoms to form CaP6 octahedra that share corners with twelve equivalent Cd(1)P4 tetrahedra, edges with six equivalent Ca(1)P6 octahedra, and edges with six equivalent Cd(1)P4 tetrahedra. Cd(1) is bonded to four equivalent P(1) atoms to form distorted CdP4 tetrahedra that share corners with six equivalent Ca(1)P6 octahedra, corners with six equivalent Cd(1)P4 tetrahedra, edges with three equivalent Ca(1)P6 octahedra, and edges with three equivalent Cd(1)P4 tetrahedra. The corner-sharing octahedral tilt angles range from 15-56°. P(1) is bonded to three equivalent Ca(1) and four equivalent Cd(1) atoms to form a mixture of distorted edge and corner-sharing PCa3Cd4 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Ca(CdP)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.292
_cell_length_b   4.292
_cell_length_c   7.055
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   112.574
_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  0.000  0.000  0.000  1.0
  Cd  Cd1  1  0.333  0.667  0.638  1.0
  Cd  Cd2  1  0.667  0.333  0.362  1.0
  P  P3  1  0.667  0.333  0.759  1.0
  P  P4  1  0.333  0.667  0.241  1.0
[/CIF]
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