The crystal structure described by Ca6Ge2O crystallizes in the cubic Fm-3m space group. Ca(1) is bonded in a single-bond geometry to four equivalent Ge(1) and one O(1) atom. Ge(1) is bonded to twelve equivalent Ca(1) atoms to form GeCa12 cuboctahedra that share corners with twelve equivalent Ge(1)Ca12 cuboctahedra, faces with six equivalent Ge(1)Ca12 cuboctahedra, and faces with four equivalent O(1)Ca6 octahedra. O(1) is bonded to six equivalent Ca(1) atoms to form OCa6 octahedra that share faces with eight equivalent Ge(1)Ca12 cuboctahedra. is represented by the CIF card [CIF]
data_Ca6Ge2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.805
_cell_length_b   6.805
_cell_length_c   6.805
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   222.869
_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  0.246  0.754  0.246  1.0
  Ca  Ca1  1  0.754  0.754  0.246  1.0
  Ca  Ca2  1  0.754  0.246  0.246  1.0
  Ca  Ca3  1  0.754  0.246  0.754  1.0
  Ca  Ca4  1  0.246  0.246  0.754  1.0
  Ca  Ca5  1  0.246  0.754  0.754  1.0
  Ge  Ge6  1  0.750  0.750  0.750  1.0
  Ge  Ge7  1  0.250  0.250  0.250  1.0
  O  O8  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Ca6Ge2O crystallizes in the cubic Fm-3m space group. Ca(1) is bonded in a single-bond geometry to four equivalent Ge(1) and one O(1) atom. Ge(1) is bonded to twelve equivalent Ca(1) atoms to form GeCa12 cuboctahedra that share corners with twelve equivalent Ge(1)Ca12 cuboctahedra, faces with six equivalent Ge(1)Ca12 cuboctahedra, and faces with four equivalent O(1)Ca6 octahedra. O(1) is bonded to six equivalent Ca(1) atoms to form OCa6 octahedra that share faces with eight equivalent Ge(1)Ca12 cuboctahedra. is represented by the CIF card [CIF]
data_Ca6Ge2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.805
_cell_length_b   6.805
_cell_length_c   6.805
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   222.869
_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  0.246  0.754  0.246  1.0
  Ca  Ca1  1  0.754  0.754  0.246  1.0
  Ca  Ca2  1  0.754  0.246  0.246  1.0
  Ca  Ca3  1  0.754  0.246  0.754  1.0
  Ca  Ca4  1  0.246  0.246  0.754  1.0
  Ca  Ca5  1  0.246  0.754  0.754  1.0
  Ge  Ge6  1  0.750  0.750  0.750  1.0
  Ge  Ge7  1  0.250  0.250  0.250  1.0
  O  O8  1  0.000  0.000  0.000  1.0
[/CIF]
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