The compound described by CaC4 crystallizes in the tetragonal P4/mmm space group. Ca(1) is bonded in a 16-coordinate geometry to sixteen equivalent C(1) atoms. C(1) is bonded in a 7-coordinate geometry to four equivalent Ca(1) and three equivalent C(1) atoms. is represented by the CIF file [CIF]
data_CaC4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.548
_cell_length_b   3.548
_cell_length_c   3.958
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   49.829
_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  0.500  1.0
  C  C1  1  0.202  0.500  0.000  1.0
  C  C2  1  0.500  0.202  0.000  1.0
  C  C3  1  0.500  0.798  0.000  1.0
  C  C4  1  0.798  0.500  0.000  1.0
[/CIF]
.
The compound described by CaC4 crystallizes in the tetragonal P4/mmm space group. Ca(1) is bonded in a 16-coordinate geometry to sixteen equivalent C(1) atoms. C(1) is bonded in a 7-coordinate geometry to four equivalent Ca(1) and three equivalent C(1) atoms. is represented by the CIF file [CIF]
data_CaC4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.548
_cell_length_b   3.548
_cell_length_c   3.958
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   49.829
_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  0.500  1.0
  C  C1  1  0.202  0.500  0.000  1.0
  C  C2  1  0.500  0.202  0.000  1.0
  C  C3  1  0.500  0.798  0.000  1.0
  C  C4  1  0.798  0.500  0.000  1.0
[/CIF]
.