The crystal structure described by Cr(GeO3)2 crystallizes in the monoclinic P2_1/c space group. Cr(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted CrO6 octahedra that share corners with three equivalent Ge(1)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, edges with two equivalent Cr(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form GeO4 tetrahedra that share corners with three equivalent Cr(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 35-60°. In the second Ge site, Ge(2) is bonded to one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids,  an edgeedge with one Cr(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 36-41°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Cr(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(2) atoms. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the fourth O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1) and two equivalent Ge(2) atoms. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one Ge(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(1) and one Ge(1) atom. is represented by the CIF card [CIF]
data_Cr(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.968
_cell_length_b   5.410
_cell_length_c   10.151
_cell_angle_alpha   74.984
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.674
_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
  Cr  Cr0  1  0.341  0.722  0.237  1.0
  Cr  Cr1  1  0.841  0.778  0.763  1.0
  Cr  Cr2  1  0.659  0.278  0.763  1.0
  Cr  Cr3  1  0.159  0.222  0.237  1.0
  Ge  Ge4  1  0.665  0.805  0.054  1.0
  Ge  Ge5  1  0.165  0.695  0.946  1.0
  Ge  Ge6  1  0.335  0.195  0.946  1.0
  Ge  Ge7  1  0.835  0.305  0.054  1.0
  Ge  Ge8  1  0.652  0.619  0.476  1.0
  Ge  Ge9  1  0.152  0.881  0.524  1.0
  Ge  Ge10  1  0.348  0.381  0.524  1.0
  Ge  Ge11  1  0.848  0.119  0.476  1.0
  O  O12  1  0.721  0.938  0.408  1.0
  O  O13  1  0.221  0.562  0.592  1.0
  O  O14  1  0.279  0.062  0.592  1.0
  O  O15  1  0.779  0.438  0.408  1.0
  O  O16  1  0.700  0.071  0.116  1.0
  O  O17  1  0.200  0.429  0.884  1.0
  O  O18  1  0.300  0.929  0.884  1.0
  O  O19  1  0.800  0.571  0.116  1.0
  O  O20  1  0.035  0.183  0.406  1.0
  O  O21  1  0.535  0.317  0.594  1.0
  O  O22  1  0.965  0.817  0.594  1.0
  O  O23  1  0.465  0.683  0.406  1.0
  O  O24  1  0.011  0.193  0.119  1.0
  O  O25  1  0.511  0.307  0.881  1.0
  O  O26  1  0.989  0.807  0.881  1.0
  O  O27  1  0.489  0.693  0.119  1.0
  O  O28  1  0.676  0.892  0.871  1.0
  O  O29  1  0.176  0.608  0.129  1.0
  O  O30  1  0.324  0.108  0.129  1.0
  O  O31  1  0.824  0.392  0.871  1.0
  O  O32  1  0.703  0.607  0.662  1.0
  O  O33  1  0.203  0.893  0.338  1.0
  O  O34  1  0.297  0.393  0.338  1.0
  O  O35  1  0.797  0.107  0.662  1.0
[/CIF]
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The crystal structure described by Cr(GeO3)2 crystallizes in the monoclinic P2_1/c space group. Cr(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form distorted CrO6 octahedra that share corners with three equivalent Ge(1)O4 tetrahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids, edges with two equivalent Cr(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one O(4), one O(5), and two equivalent O(2) atoms to form GeO4 tetrahedra that share corners with three equivalent Cr(1)O6 octahedra and corners with two equivalent Ge(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 35-60°. In the second Ge site, Ge(2) is bonded to one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted GeO5 trigonal bipyramids that share corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Ge(2)O5 trigonal bipyramids,  an edgeedge with one Cr(1)O6 octahedra, and  an edgeedge with one Ge(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 36-41°. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Cr(1) and one Ge(2) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to two equivalent Ge(2) atoms. In the third O site, O(2) is bonded in a bent 120 degrees geometry to two equivalent Ge(1) atoms. In the fourth O site, O(3) is bonded in a distorted T-shaped geometry to one Cr(1) and two equivalent Ge(2) atoms. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one Ge(1) atom. In the sixth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Cr(1) and one Ge(1) atom. is represented by the CIF card [CIF]
data_Cr(GeO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.968
_cell_length_b   5.410
_cell_length_c   10.151
_cell_angle_alpha   74.984
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   475.674
_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
  Cr  Cr0  1  0.341  0.722  0.237  1.0
  Cr  Cr1  1  0.841  0.778  0.763  1.0
  Cr  Cr2  1  0.659  0.278  0.763  1.0
  Cr  Cr3  1  0.159  0.222  0.237  1.0
  Ge  Ge4  1  0.665  0.805  0.054  1.0
  Ge  Ge5  1  0.165  0.695  0.946  1.0
  Ge  Ge6  1  0.335  0.195  0.946  1.0
  Ge  Ge7  1  0.835  0.305  0.054  1.0
  Ge  Ge8  1  0.652  0.619  0.476  1.0
  Ge  Ge9  1  0.152  0.881  0.524  1.0
  Ge  Ge10  1  0.348  0.381  0.524  1.0
  Ge  Ge11  1  0.848  0.119  0.476  1.0
  O  O12  1  0.721  0.938  0.408  1.0
  O  O13  1  0.221  0.562  0.592  1.0
  O  O14  1  0.279  0.062  0.592  1.0
  O  O15  1  0.779  0.438  0.408  1.0
  O  O16  1  0.700  0.071  0.116  1.0
  O  O17  1  0.200  0.429  0.884  1.0
  O  O18  1  0.300  0.929  0.884  1.0
  O  O19  1  0.800  0.571  0.116  1.0
  O  O20  1  0.035  0.183  0.406  1.0
  O  O21  1  0.535  0.317  0.594  1.0
  O  O22  1  0.965  0.817  0.594  1.0
  O  O23  1  0.465  0.683  0.406  1.0
  O  O24  1  0.011  0.193  0.119  1.0
  O  O25  1  0.511  0.307  0.881  1.0
  O  O26  1  0.989  0.807  0.881  1.0
  O  O27  1  0.489  0.693  0.119  1.0
  O  O28  1  0.676  0.892  0.871  1.0
  O  O29  1  0.176  0.608  0.129  1.0
  O  O30  1  0.324  0.108  0.129  1.0
  O  O31  1  0.824  0.392  0.871  1.0
  O  O32  1  0.703  0.607  0.662  1.0
  O  O33  1  0.203  0.893  0.338  1.0
  O  O34  1  0.297  0.393  0.338  1.0
  O  O35  1  0.797  0.107  0.662  1.0
[/CIF]
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