The crystal structure described by CdGe2O5 is Esseneite-derived structured and crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-59°. In the second Ge site, Ge(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. In the third Ge site, Ge(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form GeO6 octahedra that share corners with two equivalent Ge(2)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cd(1), one Ge(1), and one Ge(2) atom to form a mixture of distorted corner and edge-sharing OCd2Ge2 tetrahedra. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one Ge(2), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cd(1), one Ge(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_CdGe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.365
_cell_length_b   5.545
_cell_length_c   6.936
_cell_angle_alpha   105.273
_cell_angle_beta   102.138
_cell_angle_gamma   106.927
_symmetry_Int_Tables_number   1
_cell_volume   180.995
_cell_formula_units_Z   2
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  0.662  0.312  0.766  1.0
  Cd  Cd1  1  0.338  0.688  0.234  1.0
  Ge  Ge2  1  0.686  0.319  0.250  1.0
  Ge  Ge3  1  0.314  0.681  0.750  1.0
  Ge  Ge4  1  0.000  0.000  0.500  1.0
  Ge  Ge5  1  0.000  0.000  0.000  1.0
  O  O6  1  0.291  0.875  0.589  1.0
  O  O7  1  0.709  0.125  0.411  1.0
  O  O8  1  0.624  0.779  0.950  1.0
  O  O9  1  0.376  0.221  0.050  1.0
  O  O10  1  0.066  0.677  0.881  1.0
  O  O11  1  0.934  0.323  0.119  1.0
  O  O12  1  0.085  0.946  0.252  1.0
  O  O13  1  0.915  0.054  0.748  1.0
  O  O14  1  0.725  0.644  0.400  1.0
  O  O15  1  0.275  0.356  0.600  1.0
[/CIF]
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The crystal structure described by CdGe2O5 is Esseneite-derived structured and crystallizes in the triclinic P-1 space group. Cd(1) is bonded in a 8-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form corner-sharing GeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 43-59°. In the second Ge site, Ge(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form GeO6 octahedra that share corners with two equivalent Ge(3)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. In the third Ge site, Ge(3) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form GeO6 octahedra that share corners with two equivalent Ge(2)O6 octahedra and corners with four equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 39°. There are five inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cd(1), one Ge(1), and one Ge(2) atom to form a mixture of distorted corner and edge-sharing OCd2Ge2 tetrahedra. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Cd(1), one Ge(1), and one Ge(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cd(1), one Ge(2), and one Ge(3) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Cd(1), one Ge(1), and one Ge(2) atom. is represented by the CIF card [CIF]
data_CdGe2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.365
_cell_length_b   5.545
_cell_length_c   6.936
_cell_angle_alpha   105.273
_cell_angle_beta   102.138
_cell_angle_gamma   106.927
_symmetry_Int_Tables_number   1
_cell_volume   180.995
_cell_formula_units_Z   2
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  0.662  0.312  0.766  1.0
  Cd  Cd1  1  0.338  0.688  0.234  1.0
  Ge  Ge2  1  0.686  0.319  0.250  1.0
  Ge  Ge3  1  0.314  0.681  0.750  1.0
  Ge  Ge4  1  0.000  0.000  0.500  1.0
  Ge  Ge5  1  0.000  0.000  0.000  1.0
  O  O6  1  0.291  0.875  0.589  1.0
  O  O7  1  0.709  0.125  0.411  1.0
  O  O8  1  0.624  0.779  0.950  1.0
  O  O9  1  0.376  0.221  0.050  1.0
  O  O10  1  0.066  0.677  0.881  1.0
  O  O11  1  0.934  0.323  0.119  1.0
  O  O12  1  0.085  0.946  0.252  1.0
  O  O13  1  0.915  0.054  0.748  1.0
  O  O14  1  0.725  0.644  0.400  1.0
  O  O15  1  0.275  0.356  0.600  1.0
[/CIF]
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