The material described by CaGe2 crystallizes in the trigonal R-3m space group. Ca(1) is bonded in a 8-coordinate geometry to eight equivalent Ge(1) atoms. Ge(1) is bonded in a 7-coordinate geometry to four equivalent Ca(1) and three equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_CaGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.975
_cell_length_b   3.975
_cell_length_c   5.728
_cell_angle_alpha   69.694
_cell_angle_beta   69.694
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   71.820
_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
  Ge  Ge1  1  0.799  0.799  0.604  1.0
  Ge  Ge2  1  0.201  0.201  0.396  1.0
[/CIF]
.
The material described by CaGe2 crystallizes in the trigonal R-3m space group. Ca(1) is bonded in a 8-coordinate geometry to eight equivalent Ge(1) atoms. Ge(1) is bonded in a 7-coordinate geometry to four equivalent Ca(1) and three equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_CaGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.975
_cell_length_b   3.975
_cell_length_c   5.728
_cell_angle_alpha   69.694
_cell_angle_beta   69.694
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   71.820
_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
  Ge  Ge1  1  0.799  0.799  0.604  1.0
  Ge  Ge2  1  0.201  0.201  0.396  1.0
[/CIF]
.