The compound described by Y2Ge2O7 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted YO6 pentagonal pyramids that share corners with six equivalent Ge(1)O4 tetrahedra and edges with three equivalent Y(1)O6 pentagonal pyramids. 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 six equivalent Y(1)O6 pentagonal pyramids and  a cornercorner with one Ge(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Y(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Y(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a linear geometry to two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2Ge2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.758
_cell_length_b   5.758
_cell_length_c   4.961
_cell_angle_alpha   82.665
_cell_angle_beta   97.335
_cell_angle_gamma   74.877
_symmetry_Int_Tables_number   1
_cell_volume   155.218
_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
  Y  Y0  1  0.694  0.694  0.000  1.0
  Y  Y1  1  0.306  0.306  0.000  1.0
  Ge  Ge2  1  0.229  0.771  0.410  1.0
  Ge  Ge3  1  0.771  0.229  0.590  1.0
  O  O4  1  0.081  0.602  0.213  1.0
  O  O5  1  0.398  0.919  0.213  1.0
  O  O6  1  0.398  0.602  0.724  1.0
  O  O7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.602  0.398  0.276  1.0
  O  O9  1  0.919  0.398  0.787  1.0
  O  O10  1  0.602  0.081  0.787  1.0
[/CIF]
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The compound described by Y2Ge2O7 crystallizes in the monoclinic C2/m space group. Y(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form distorted YO6 pentagonal pyramids that share corners with six equivalent Ge(1)O4 tetrahedra and edges with three equivalent Y(1)O6 pentagonal pyramids. 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 six equivalent Y(1)O6 pentagonal pyramids and  a cornercorner with one Ge(1)O4 tetrahedra. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Y(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Y(1) and one Ge(1) atom. In the third O site, O(3) is bonded in a linear geometry to two equivalent Ge(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2Ge2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.758
_cell_length_b   5.758
_cell_length_c   4.961
_cell_angle_alpha   82.665
_cell_angle_beta   97.335
_cell_angle_gamma   74.877
_symmetry_Int_Tables_number   1
_cell_volume   155.218
_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
  Y  Y0  1  0.694  0.694  0.000  1.0
  Y  Y1  1  0.306  0.306  0.000  1.0
  Ge  Ge2  1  0.229  0.771  0.410  1.0
  Ge  Ge3  1  0.771  0.229  0.590  1.0
  O  O4  1  0.081  0.602  0.213  1.0
  O  O5  1  0.398  0.919  0.213  1.0
  O  O6  1  0.398  0.602  0.724  1.0
  O  O7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.602  0.398  0.276  1.0
  O  O9  1  0.919  0.398  0.787  1.0
  O  O10  1  0.602  0.081  0.787  1.0
[/CIF]
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