The compound described by CaC2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to four equivalent C(1) and four equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 5-coordinate geometry to four equivalent Ca(1) and one C(1) atom. In the second C site, C(2) is bonded in a 5-coordinate geometry to four equivalent Ca(1) and one C(2) atom. is represented by the CIF card [CIF]
data_CaC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.856
_cell_length_b   3.972
_cell_length_c   7.263
_cell_angle_alpha   81.469
_cell_angle_beta   86.767
_cell_angle_gamma   62.409
_symmetry_Int_Tables_number   1
_cell_volume   97.495
_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
  C  C0  1  0.131  0.401  0.060  1.0
  C  C1  1  0.869  0.599  0.940  1.0
  C  C2  1  0.448  0.634  0.434  1.0
  C  C3  1  0.552  0.366  0.566  1.0
  Ca  Ca4  1  0.226  0.981  0.752  1.0
  Ca  Ca5  1  0.774  0.019  0.248  1.0
[/CIF]
.
The compound described by CaC2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 8-coordinate geometry to four equivalent C(1) and four equivalent C(2) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a 5-coordinate geometry to four equivalent Ca(1) and one C(1) atom. In the second C site, C(2) is bonded in a 5-coordinate geometry to four equivalent Ca(1) and one C(2) atom. is represented by the CIF card [CIF]
data_CaC2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.856
_cell_length_b   3.972
_cell_length_c   7.263
_cell_angle_alpha   81.469
_cell_angle_beta   86.767
_cell_angle_gamma   62.409
_symmetry_Int_Tables_number   1
_cell_volume   97.495
_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
  C  C0  1  0.131  0.401  0.060  1.0
  C  C1  1  0.869  0.599  0.940  1.0
  C  C2  1  0.448  0.634  0.434  1.0
  C  C3  1  0.552  0.366  0.566  1.0
  Ca  Ca4  1  0.226  0.981  0.752  1.0
  Ca  Ca5  1  0.774  0.019  0.248  1.0
[/CIF]
.