The material described by Cd2GeO4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(2), one O(3), and four equivalent O(1) atoms to form CdO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, corners with four equivalent Ge(1)O4 tetrahedra, edges with two equivalent Cd(2)O6 octahedra, and  an edgeedge with one Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-65°. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with two equivalent Ge(1)O4 tetrahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, and edges with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-65°. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with two equivalent Cd(2)O6 octahedra, corners with four equivalent Cd(1)O6 octahedra,  an edgeedge with one Cd(1)O6 octahedra, and edges with two equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-61°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Cd(2), two equivalent Cd(1), and one Ge(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Cd(1), two equivalent Cd(2), and one Ge(1) atom. In the third O site, O(3) is bonded to one Cd(1), two equivalent Cd(2), and one Ge(1) atom to form distorted corner-sharing OCd3Ge trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd2GeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.230
_cell_length_b   6.605
_cell_length_c   11.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   388.056
_cell_formula_units_Z   4
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
  Cd  Cd0  1  0.489  0.750  0.780  1.0
  Cd  Cd1  1  0.989  0.250  0.720  1.0
  Cd  Cd2  1  0.511  0.250  0.220  1.0
  Cd  Cd3  1  0.011  0.750  0.280  1.0
  Cd  Cd4  1  0.500  0.500  0.500  1.0
  Cd  Cd5  1  0.000  0.500  0.000  1.0
  Cd  Cd6  1  0.500  0.000  0.500  1.0
  Cd  Cd7  1  0.000  0.000  0.000  1.0
  Ge  Ge8  1  0.933  0.750  0.598  1.0
  Ge  Ge9  1  0.433  0.250  0.902  1.0
  Ge  Ge10  1  0.067  0.250  0.402  1.0
  Ge  Ge11  1  0.567  0.750  0.098  1.0
  O  O12  1  0.220  0.461  0.335  1.0
  O  O13  1  0.720  0.539  0.165  1.0
  O  O14  1  0.780  0.961  0.665  1.0
  O  O15  1  0.280  0.039  0.835  1.0
  O  O16  1  0.780  0.539  0.665  1.0
  O  O17  1  0.280  0.461  0.835  1.0
  O  O18  1  0.220  0.039  0.335  1.0
  O  O19  1  0.720  0.961  0.165  1.0
  O  O20  1  0.791  0.750  0.453  1.0
  O  O21  1  0.291  0.250  0.047  1.0
  O  O22  1  0.209  0.250  0.547  1.0
  O  O23  1  0.709  0.750  0.953  1.0
  O  O24  1  0.233  0.750  0.097  1.0
  O  O25  1  0.733  0.250  0.403  1.0
  O  O26  1  0.767  0.250  0.903  1.0
  O  O27  1  0.267  0.750  0.597  1.0
[/CIF]
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The material described by Cd2GeO4 is Spinel-like structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(2), one O(3), and four equivalent O(1) atoms to form CdO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with four equivalent Cd(2)O6 octahedra, corners with four equivalent Ge(1)O4 tetrahedra, edges with two equivalent Cd(2)O6 octahedra, and  an edgeedge with one Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-65°. In the second Cd site, Cd(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form CdO6 octahedra that share corners with four equivalent Cd(1)O6 octahedra, corners with two equivalent Ge(1)O4 tetrahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, and edges with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-65°. Ge(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form GeO4 tetrahedra that share corners with two equivalent Cd(2)O6 octahedra, corners with four equivalent Cd(1)O6 octahedra,  an edgeedge with one Cd(1)O6 octahedra, and edges with two equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-61°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Cd(2), two equivalent Cd(1), and one Ge(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Cd(1), two equivalent Cd(2), and one Ge(1) atom. In the third O site, O(3) is bonded to one Cd(1), two equivalent Cd(2), and one Ge(1) atom to form distorted corner-sharing OCd3Ge trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cd2GeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.230
_cell_length_b   6.605
_cell_length_c   11.233
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   388.056
_cell_formula_units_Z   4
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
  Cd  Cd0  1  0.489  0.750  0.780  1.0
  Cd  Cd1  1  0.989  0.250  0.720  1.0
  Cd  Cd2  1  0.511  0.250  0.220  1.0
  Cd  Cd3  1  0.011  0.750  0.280  1.0
  Cd  Cd4  1  0.500  0.500  0.500  1.0
  Cd  Cd5  1  0.000  0.500  0.000  1.0
  Cd  Cd6  1  0.500  0.000  0.500  1.0
  Cd  Cd7  1  0.000  0.000  0.000  1.0
  Ge  Ge8  1  0.933  0.750  0.598  1.0
  Ge  Ge9  1  0.433  0.250  0.902  1.0
  Ge  Ge10  1  0.067  0.250  0.402  1.0
  Ge  Ge11  1  0.567  0.750  0.098  1.0
  O  O12  1  0.220  0.461  0.335  1.0
  O  O13  1  0.720  0.539  0.165  1.0
  O  O14  1  0.780  0.961  0.665  1.0
  O  O15  1  0.280  0.039  0.835  1.0
  O  O16  1  0.780  0.539  0.665  1.0
  O  O17  1  0.280  0.461  0.835  1.0
  O  O18  1  0.220  0.039  0.335  1.0
  O  O19  1  0.720  0.961  0.165  1.0
  O  O20  1  0.791  0.750  0.453  1.0
  O  O21  1  0.291  0.250  0.047  1.0
  O  O22  1  0.209  0.250  0.547  1.0
  O  O23  1  0.709  0.750  0.953  1.0
  O  O24  1  0.233  0.750  0.097  1.0
  O  O25  1  0.733  0.250  0.403  1.0
  O  O26  1  0.767  0.250  0.903  1.0
  O  O27  1  0.267  0.750  0.597  1.0
[/CIF]
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