The material described by Gd2Ge(BO4)2 crystallizes in the orthorhombic Pbcn space group. Gd(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), two equivalent O(4), and three equivalent O(1) atoms. B(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form BO4 tetrahedra that share  a cornercorner with one Ge(1)O4 tetrahedra and corners with two equivalent B(1)O4 tetrahedra. Ge(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form GeO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Gd(1) and two equivalent B(1) atoms. In the second O site, O(4) is bonded in a trigonal planar geometry to two equivalent Gd(1) and one Ge(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Gd(1) and one B(1) atom. In the fourth O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one B(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd2Ge(BO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.460
_cell_length_b   9.435
_cell_length_c   13.633
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   573.651
_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
  Gd  Gd0  1  0.459  0.527  0.640  1.0
  Gd  Gd1  1  0.041  0.027  0.860  1.0
  Gd  Gd2  1  0.041  0.473  0.140  1.0
  Gd  Gd3  1  0.459  0.973  0.360  1.0
  Gd  Gd4  1  0.541  0.473  0.360  1.0
  Gd  Gd5  1  0.959  0.973  0.140  1.0
  Gd  Gd6  1  0.959  0.527  0.860  1.0
  Gd  Gd7  1  0.541  0.027  0.640  1.0
  Ge  Ge8  1  0.923  0.750  0.500  1.0
  Ge  Ge9  1  0.577  0.250  0.000  1.0
  Ge  Ge10  1  0.077  0.250  0.500  1.0
  Ge  Ge11  1  0.423  0.750  0.000  1.0
  B  B12  1  0.530  0.702  0.200  1.0
  B  B13  1  0.970  0.202  0.300  1.0
  B  B14  1  0.970  0.298  0.700  1.0
  B  B15  1  0.530  0.798  0.800  1.0
  B  B16  1  0.470  0.298  0.800  1.0
  B  B17  1  0.030  0.798  0.700  1.0
  B  B18  1  0.030  0.702  0.300  1.0
  B  B19  1  0.470  0.202  0.200  1.0
  O  O20  1  0.536  0.549  0.192  1.0
  O  O21  1  0.964  0.049  0.308  1.0
  O  O22  1  0.964  0.451  0.692  1.0
  O  O23  1  0.536  0.951  0.808  1.0
  O  O24  1  0.464  0.451  0.808  1.0
  O  O25  1  0.036  0.951  0.692  1.0
  O  O26  1  0.036  0.549  0.308  1.0
  O  O27  1  0.464  0.049  0.192  1.0
  O  O28  1  0.655  0.767  0.107  1.0
  O  O29  1  0.845  0.267  0.393  1.0
  O  O30  1  0.845  0.233  0.607  1.0
  O  O31  1  0.655  0.733  0.893  1.0
  O  O32  1  0.345  0.233  0.893  1.0
  O  O33  1  0.155  0.733  0.607  1.0
  O  O34  1  0.155  0.767  0.393  1.0
  O  O35  1  0.345  0.267  0.107  1.0
  O  O36  1  0.218  0.758  0.216  1.0
  O  O37  1  0.282  0.258  0.284  1.0
  O  O38  1  0.282  0.242  0.716  1.0
  O  O39  1  0.218  0.742  0.784  1.0
  O  O40  1  0.782  0.242  0.784  1.0
  O  O41  1  0.718  0.742  0.716  1.0
  O  O42  1  0.718  0.758  0.284  1.0
  O  O43  1  0.782  0.258  0.216  1.0
  O  O44  1  0.702  0.598  0.495  1.0
  O  O45  1  0.798  0.098  0.005  1.0
  O  O46  1  0.798  0.402  0.995  1.0
  O  O47  1  0.702  0.902  0.505  1.0
  O  O48  1  0.298  0.402  0.505  1.0
  O  O49  1  0.202  0.902  0.995  1.0
  O  O50  1  0.202  0.598  0.005  1.0
  O  O51  1  0.298  0.098  0.495  1.0
[/CIF]
.
The material described by Gd2Ge(BO4)2 crystallizes in the orthorhombic Pbcn space group. Gd(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), two equivalent O(4), and three equivalent O(1) atoms. B(1) is bonded to one O(1), one O(2), and two equivalent O(3) atoms to form BO4 tetrahedra that share  a cornercorner with one Ge(1)O4 tetrahedra and corners with two equivalent B(1)O4 tetrahedra. Ge(1) is bonded to two equivalent O(2) and two equivalent O(4) atoms to form GeO4 tetrahedra that share corners with two equivalent B(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Gd(1) and two equivalent B(1) atoms. In the second O site, O(4) is bonded in a trigonal planar geometry to two equivalent Gd(1) and one Ge(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Gd(1) and one B(1) atom. In the fourth O site, O(2) is bonded in a 3-coordinate geometry to one Gd(1), one B(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd2Ge(BO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.460
_cell_length_b   9.435
_cell_length_c   13.633
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   573.651
_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
  Gd  Gd0  1  0.459  0.527  0.640  1.0
  Gd  Gd1  1  0.041  0.027  0.860  1.0
  Gd  Gd2  1  0.041  0.473  0.140  1.0
  Gd  Gd3  1  0.459  0.973  0.360  1.0
  Gd  Gd4  1  0.541  0.473  0.360  1.0
  Gd  Gd5  1  0.959  0.973  0.140  1.0
  Gd  Gd6  1  0.959  0.527  0.860  1.0
  Gd  Gd7  1  0.541  0.027  0.640  1.0
  Ge  Ge8  1  0.923  0.750  0.500  1.0
  Ge  Ge9  1  0.577  0.250  0.000  1.0
  Ge  Ge10  1  0.077  0.250  0.500  1.0
  Ge  Ge11  1  0.423  0.750  0.000  1.0
  B  B12  1  0.530  0.702  0.200  1.0
  B  B13  1  0.970  0.202  0.300  1.0
  B  B14  1  0.970  0.298  0.700  1.0
  B  B15  1  0.530  0.798  0.800  1.0
  B  B16  1  0.470  0.298  0.800  1.0
  B  B17  1  0.030  0.798  0.700  1.0
  B  B18  1  0.030  0.702  0.300  1.0
  B  B19  1  0.470  0.202  0.200  1.0
  O  O20  1  0.536  0.549  0.192  1.0
  O  O21  1  0.964  0.049  0.308  1.0
  O  O22  1  0.964  0.451  0.692  1.0
  O  O23  1  0.536  0.951  0.808  1.0
  O  O24  1  0.464  0.451  0.808  1.0
  O  O25  1  0.036  0.951  0.692  1.0
  O  O26  1  0.036  0.549  0.308  1.0
  O  O27  1  0.464  0.049  0.192  1.0
  O  O28  1  0.655  0.767  0.107  1.0
  O  O29  1  0.845  0.267  0.393  1.0
  O  O30  1  0.845  0.233  0.607  1.0
  O  O31  1  0.655  0.733  0.893  1.0
  O  O32  1  0.345  0.233  0.893  1.0
  O  O33  1  0.155  0.733  0.607  1.0
  O  O34  1  0.155  0.767  0.393  1.0
  O  O35  1  0.345  0.267  0.107  1.0
  O  O36  1  0.218  0.758  0.216  1.0
  O  O37  1  0.282  0.258  0.284  1.0
  O  O38  1  0.282  0.242  0.716  1.0
  O  O39  1  0.218  0.742  0.784  1.0
  O  O40  1  0.782  0.242  0.784  1.0
  O  O41  1  0.718  0.742  0.716  1.0
  O  O42  1  0.718  0.758  0.284  1.0
  O  O43  1  0.782  0.258  0.216  1.0
  O  O44  1  0.702  0.598  0.495  1.0
  O  O45  1  0.798  0.098  0.005  1.0
  O  O46  1  0.798  0.402  0.995  1.0
  O  O47  1  0.702  0.902  0.505  1.0
  O  O48  1  0.298  0.402  0.505  1.0
  O  O49  1  0.202  0.902  0.995  1.0
  O  O50  1  0.202  0.598  0.005  1.0
  O  O51  1  0.298  0.098  0.495  1.0
[/CIF]
.