The material structure described by Ca7Ge is beta-derived structured and crystallizes in the cubic Fm-3m space group. There are twenty-five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the second Ca site, Ca(2) is bonded to twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1) atoms to form CaCa12 cuboctahedra that share corners with twelve equivalent Ca(2)Ca12 cuboctahedra; edges with twenty-four Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with six equivalent Ge(1)Ca12 cuboctahedra; and faces with twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the third Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fourth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fifth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the sixth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the seventh Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eighth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the ninth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the tenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eleventh Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twelfth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the thirteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fourteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fifteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the sixteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the seventeenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eighteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the nineteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twentieth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-first Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-second Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-third Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-fourth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-fifth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. Ge(1) is bonded to twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1) atoms to form distorted GeCa12 cuboctahedra that share corners with twelve equivalent Ge(1)Ca12 cuboctahedra; edges with twenty-four Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with six equivalent Ca(2)Ca12 cuboctahedra; and faces with twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. is represented by the CIF card [CIF]
data_Ca7Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.442
_cell_length_b   7.442
_cell_length_c   7.442
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   291.411
_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  0.500  0.500  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.500  1.0
  Ca  Ca2  1  0.000  0.500  0.000  1.0
  Ca  Ca3  1  0.500  0.000  0.000  1.0
  Ca  Ca4  1  0.000  0.500  0.500  1.0
  Ca  Ca5  1  0.500  0.000  0.500  1.0
  Ca  Ca6  1  0.000  0.000  0.500  1.0
  Ge  Ge7  1  0.000  0.000  0.000  1.0
[/CIF]
.
The material structure described by Ca7Ge is beta-derived structured and crystallizes in the cubic Fm-3m space group. There are twenty-five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the second Ca site, Ca(2) is bonded to twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1) atoms to form CaCa12 cuboctahedra that share corners with twelve equivalent Ca(2)Ca12 cuboctahedra; edges with twenty-four Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with six equivalent Ge(1)Ca12 cuboctahedra; and faces with twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the third Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fourth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fifth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the sixth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the seventh Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eighth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the ninth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the tenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eleventh Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twelfth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the thirteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fourteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the fifteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the sixteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the seventeenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the eighteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the nineteenth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twentieth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-first Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-second Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-third Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-fourth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. In the twenty-fifth Ca site, Ca(1) is bonded to two equivalent Ca(2); eight Ca(1,1,1,1,1,1,1,1); and two equivalent Ge(1) atoms to form distorted CaCa10Ge2 cuboctahedra that share corners with twelve Ca(1,1,1)Ca10Ge2 cuboctahedra; edges with four equivalent Ca(2)Ca12 cuboctahedra; edges with four equivalent Ge(1)Ca12 cuboctahedra; edges with sixteen Ca(1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with two equivalent Ca(2)Ca12 cuboctahedra; faces with two equivalent Ge(1)Ca12 cuboctahedra; and faces with fourteen Ca(1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. Ge(1) is bonded to twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1) atoms to form distorted GeCa12 cuboctahedra that share corners with twelve equivalent Ge(1)Ca12 cuboctahedra; edges with twenty-four Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra; faces with six equivalent Ca(2)Ca12 cuboctahedra; and faces with twelve Ca(1,1,1,1,1,1,1,1,1,1,1,1)Ca10Ge2 cuboctahedra. is represented by the CIF card [CIF]
data_Ca7Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.442
_cell_length_b   7.442
_cell_length_c   7.442
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   291.411
_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  0.500  0.500  0.000  1.0
  Ca  Ca1  1  0.500  0.500  0.500  1.0
  Ca  Ca2  1  0.000  0.500  0.000  1.0
  Ca  Ca3  1  0.500  0.000  0.000  1.0
  Ca  Ca4  1  0.000  0.500  0.500  1.0
  Ca  Ca5  1  0.500  0.000  0.500  1.0
  Ca  Ca6  1  0.000  0.000  0.500  1.0
  Ge  Ge7  1  0.000  0.000  0.000  1.0
[/CIF]
.