The material described by CaC2 crystallizes in the monoclinic C2/c space group. Ca(1) is bonded to eight equivalent C(1) atoms to form distorted CaC8 hexagonal bipyramids that share corners with eight equivalent C(1)Ca4C square pyramids and edges with twelve equivalent Ca(1)C8 hexagonal bipyramids. C(1) is bonded to four equivalent Ca(1) and one C(1) atom to form distorted CCa4C square pyramids that share corners with four equivalent Ca(1)C8 hexagonal bipyramids, corners with sixteen equivalent C(1)Ca4C square pyramids, and edges with six equivalent C(1)Ca4C square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.900
_cell_length_b   3.900
_cell_length_c   7.384
_cell_angle_alpha   75.420
_cell_angle_beta   75.420
_cell_angle_gamma   64.513
_symmetry_Int_Tables_number   1
_cell_volume   96.770
_cell_formula_units_Z   2
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  0.825  0.175  0.250  1.0
  Ca  Ca1  1  0.175  0.825  0.750  1.0
  C  C2  1  0.140  0.421  0.440  1.0
  C  C3  1  0.579  0.860  0.060  1.0
  C  C4  1  0.421  0.140  0.940  1.0
  C  C5  1  0.860  0.579  0.560  1.0
[/CIF]
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The material described by CaC2 crystallizes in the monoclinic C2/c space group. Ca(1) is bonded to eight equivalent C(1) atoms to form distorted CaC8 hexagonal bipyramids that share corners with eight equivalent C(1)Ca4C square pyramids and edges with twelve equivalent Ca(1)C8 hexagonal bipyramids. C(1) is bonded to four equivalent Ca(1) and one C(1) atom to form distorted CCa4C square pyramids that share corners with four equivalent Ca(1)C8 hexagonal bipyramids, corners with sixteen equivalent C(1)Ca4C square pyramids, and edges with six equivalent C(1)Ca4C square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.900
_cell_length_b   3.900
_cell_length_c   7.384
_cell_angle_alpha   75.420
_cell_angle_beta   75.420
_cell_angle_gamma   64.513
_symmetry_Int_Tables_number   1
_cell_volume   96.770
_cell_formula_units_Z   2
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  0.825  0.175  0.250  1.0
  Ca  Ca1  1  0.175  0.825  0.750  1.0
  C  C2  1  0.140  0.421  0.440  1.0
  C  C3  1  0.579  0.860  0.060  1.0
  C  C4  1  0.421  0.140  0.940  1.0
  C  C5  1  0.860  0.579  0.560  1.0
[/CIF]
.