The structure described by Y2GeO5 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form distorted YO6 octahedra that share corners with four equivalent Ge(1)O4 tetrahedra and edges with two equivalent Y(1)O6 octahedra. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Ge(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form GeO4 tetrahedra that share corners with four equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-70°. There are five inequivalent O sites. In the first O site, O(4) is bonded in a trigonal non-coplanar geometry to two equivalent Y(1) and one Ge(1) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Y(2), and one Ge(1) atom. In the third O site, O(1) is bonded to two equivalent Y(1) and two equivalent Y(2) atoms to form edge-sharing OY4 tetrahedra. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Y(1), two equivalent Y(2), and one Ge(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Y(2) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.191
_cell_length_b   8.191
_cell_length_c   10.468
_cell_angle_alpha   61.334
_cell_angle_beta   61.334
_cell_angle_gamma   49.372
_symmetry_Int_Tables_number   1
_cell_volume   452.688
_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
  Y  Y0  1  0.990  0.735  0.838  1.0
  Y  Y1  1  0.278  0.793  0.035  1.0
  Y  Y2  1  0.735  0.990  0.338  1.0
  Y  Y3  1  0.010  0.265  0.162  1.0
  Y  Y4  1  0.265  0.010  0.662  1.0
  Y  Y5  1  0.793  0.278  0.535  1.0
  Y  Y6  1  0.722  0.207  0.965  1.0
  Y  Y7  1  0.207  0.722  0.465  1.0
  Ge  Ge8  1  0.220  0.410  0.308  1.0
  Ge  Ge9  1  0.410  0.220  0.808  1.0
  Ge  Ge10  1  0.590  0.780  0.192  1.0
  Ge  Ge11  1  0.780  0.590  0.692  1.0
  O  O12  1  0.114  0.919  0.603  1.0
  O  O13  1  0.914  0.320  0.676  1.0
  O  O14  1  0.680  0.086  0.824  1.0
  O  O15  1  0.578  0.590  0.367  1.0
  O  O16  1  0.086  0.680  0.324  1.0
  O  O17  1  0.081  0.886  0.897  1.0
  O  O18  1  0.320  0.914  0.176  1.0
  O  O19  1  0.919  0.114  0.103  1.0
  O  O20  1  0.220  0.370  0.945  1.0
  O  O21  1  0.041  0.351  0.324  1.0
  O  O22  1  0.410  0.422  0.133  1.0
  O  O23  1  0.630  0.780  0.555  1.0
  O  O24  1  0.590  0.578  0.867  1.0
  O  O25  1  0.370  0.220  0.445  1.0
  O  O26  1  0.959  0.649  0.676  1.0
  O  O27  1  0.886  0.081  0.397  1.0
  O  O28  1  0.780  0.630  0.055  1.0
  O  O29  1  0.649  0.959  0.176  1.0
  O  O30  1  0.422  0.410  0.633  1.0
  O  O31  1  0.351  0.041  0.824  1.0
[/CIF]
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The structure described by Y2GeO5 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(2), one O(5), two equivalent O(1), and two equivalent O(4) atoms to form distorted YO6 octahedra that share corners with four equivalent Ge(1)O4 tetrahedra and edges with two equivalent Y(1)O6 octahedra. In the second Y site, Y(2) is bonded in a 7-coordinate geometry to one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Ge(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form GeO4 tetrahedra that share corners with four equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-70°. There are five inequivalent O sites. In the first O site, O(4) is bonded in a trigonal non-coplanar geometry to two equivalent Y(1) and one Ge(1) atom. In the second O site, O(5) is bonded in a distorted trigonal planar geometry to one Y(1), one Y(2), and one Ge(1) atom. In the third O site, O(1) is bonded to two equivalent Y(1) and two equivalent Y(2) atoms to form edge-sharing OY4 tetrahedra. In the fourth O site, O(2) is bonded in a 4-coordinate geometry to one Y(1), two equivalent Y(2), and one Ge(1) atom. In the fifth O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Y(2) and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.191
_cell_length_b   8.191
_cell_length_c   10.468
_cell_angle_alpha   61.334
_cell_angle_beta   61.334
_cell_angle_gamma   49.372
_symmetry_Int_Tables_number   1
_cell_volume   452.688
_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
  Y  Y0  1  0.990  0.735  0.838  1.0
  Y  Y1  1  0.278  0.793  0.035  1.0
  Y  Y2  1  0.735  0.990  0.338  1.0
  Y  Y3  1  0.010  0.265  0.162  1.0
  Y  Y4  1  0.265  0.010  0.662  1.0
  Y  Y5  1  0.793  0.278  0.535  1.0
  Y  Y6  1  0.722  0.207  0.965  1.0
  Y  Y7  1  0.207  0.722  0.465  1.0
  Ge  Ge8  1  0.220  0.410  0.308  1.0
  Ge  Ge9  1  0.410  0.220  0.808  1.0
  Ge  Ge10  1  0.590  0.780  0.192  1.0
  Ge  Ge11  1  0.780  0.590  0.692  1.0
  O  O12  1  0.114  0.919  0.603  1.0
  O  O13  1  0.914  0.320  0.676  1.0
  O  O14  1  0.680  0.086  0.824  1.0
  O  O15  1  0.578  0.590  0.367  1.0
  O  O16  1  0.086  0.680  0.324  1.0
  O  O17  1  0.081  0.886  0.897  1.0
  O  O18  1  0.320  0.914  0.176  1.0
  O  O19  1  0.919  0.114  0.103  1.0
  O  O20  1  0.220  0.370  0.945  1.0
  O  O21  1  0.041  0.351  0.324  1.0
  O  O22  1  0.410  0.422  0.133  1.0
  O  O23  1  0.630  0.780  0.555  1.0
  O  O24  1  0.590  0.578  0.867  1.0
  O  O25  1  0.370  0.220  0.445  1.0
  O  O26  1  0.959  0.649  0.676  1.0
  O  O27  1  0.886  0.081  0.397  1.0
  O  O28  1  0.780  0.630  0.055  1.0
  O  O29  1  0.649  0.959  0.176  1.0
  O  O30  1  0.422  0.410  0.633  1.0
  O  O31  1  0.351  0.041  0.824  1.0
[/CIF]
.