The compound described by Lu2GeO5 crystallizes in the monoclinic C2/c space group. Lu(1) is bonded in a 6-coordinate geometry to one O(3), two equivalent O(1), and three equivalent O(2) atoms. Ge(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Lu(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Lu(1) and one Ge(1) atom. In the third O site, O(3) is bonded to two equivalent Lu(1) and two equivalent Ge(1) atoms to form distorted corner-sharing OLu2Ge2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Lu2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.257
_cell_length_b   6.257
_cell_length_c   7.365
_cell_angle_alpha   68.321
_cell_angle_beta   68.321
_cell_angle_gamma   48.702
_symmetry_Int_Tables_number   1
_cell_volume   198.046
_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
  Lu  Lu0  1  0.368  0.353  0.256  1.0
  Lu  Lu1  1  0.647  0.632  0.244  1.0
  Lu  Lu2  1  0.353  0.368  0.756  1.0
  Lu  Lu3  1  0.632  0.647  0.744  1.0
  Ge  Ge4  1  0.000  0.000  0.000  1.0
  Ge  Ge5  1  0.000  0.000  0.500  1.0
  O  O6  1  0.976  0.688  0.138  1.0
  O  O7  1  0.242  0.612  0.459  1.0
  O  O8  1  0.612  0.242  0.959  1.0
  O  O9  1  0.312  0.024  0.362  1.0
  O  O10  1  0.688  0.976  0.638  1.0
  O  O11  1  0.830  0.170  0.250  1.0
  O  O12  1  0.388  0.758  0.041  1.0
  O  O13  1  0.758  0.388  0.541  1.0
  O  O14  1  0.024  0.312  0.862  1.0
  O  O15  1  0.170  0.830  0.750  1.0
[/CIF]
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The compound described by Lu2GeO5 crystallizes in the monoclinic C2/c space group. Lu(1) is bonded in a 6-coordinate geometry to one O(3), two equivalent O(1), and three equivalent O(2) atoms. Ge(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing GeO6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Lu(1) and one Ge(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to three equivalent Lu(1) and one Ge(1) atom. In the third O site, O(3) is bonded to two equivalent Lu(1) and two equivalent Ge(1) atoms to form distorted corner-sharing OLu2Ge2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Lu2GeO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.257
_cell_length_b   6.257
_cell_length_c   7.365
_cell_angle_alpha   68.321
_cell_angle_beta   68.321
_cell_angle_gamma   48.702
_symmetry_Int_Tables_number   1
_cell_volume   198.046
_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
  Lu  Lu0  1  0.368  0.353  0.256  1.0
  Lu  Lu1  1  0.647  0.632  0.244  1.0
  Lu  Lu2  1  0.353  0.368  0.756  1.0
  Lu  Lu3  1  0.632  0.647  0.744  1.0
  Ge  Ge4  1  0.000  0.000  0.000  1.0
  Ge  Ge5  1  0.000  0.000  0.500  1.0
  O  O6  1  0.976  0.688  0.138  1.0
  O  O7  1  0.242  0.612  0.459  1.0
  O  O8  1  0.612  0.242  0.959  1.0
  O  O9  1  0.312  0.024  0.362  1.0
  O  O10  1  0.688  0.976  0.638  1.0
  O  O11  1  0.830  0.170  0.250  1.0
  O  O12  1  0.388  0.758  0.041  1.0
  O  O13  1  0.758  0.388  0.541  1.0
  O  O14  1  0.024  0.312  0.862  1.0
  O  O15  1  0.170  0.830  0.750  1.0
[/CIF]
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