The crystal structure described by Sr2GeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Ge(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr4Ge trigonal bipyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sr2GeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.226
_cell_length_b   5.849
_cell_length_c   11.110
_cell_angle_alpha   63.027
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   418.462
_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
  Sr  Sr0  1  0.347  0.300  0.429  1.0
  Sr  Sr1  1  0.847  0.700  0.071  1.0
  Sr  Sr2  1  0.653  0.700  0.571  1.0
  Sr  Sr3  1  0.153  0.300  0.929  1.0
  Sr  Sr4  1  0.997  0.020  0.700  1.0
  Sr  Sr5  1  0.497  0.980  0.800  1.0
  Sr  Sr6  1  0.003  0.980  0.300  1.0
  Sr  Sr7  1  0.503  0.020  0.200  1.0
  Ge  Ge8  1  0.783  0.347  0.418  1.0
  Ge  Ge9  1  0.283  0.653  0.082  1.0
  Ge  Ge10  1  0.217  0.653  0.582  1.0
  Ge  Ge11  1  0.717  0.347  0.918  1.0
  O  O12  1  0.018  0.276  0.439  1.0
  O  O13  1  0.518  0.724  0.061  1.0
  O  O14  1  0.982  0.724  0.561  1.0
  O  O15  1  0.482  0.276  0.939  1.0
  O  O16  1  0.670  0.264  0.574  1.0
  O  O17  1  0.170  0.736  0.926  1.0
  O  O18  1  0.330  0.736  0.426  1.0
  O  O19  1  0.830  0.264  0.074  1.0
  O  O20  1  0.670  0.144  0.361  1.0
  O  O21  1  0.170  0.856  0.139  1.0
  O  O22  1  0.330  0.856  0.639  1.0
  O  O23  1  0.830  0.144  0.861  1.0
  O  O24  1  0.747  0.674  0.307  1.0
  O  O25  1  0.247  0.326  0.193  1.0
  O  O26  1  0.253  0.326  0.693  1.0
  O  O27  1  0.753  0.674  0.807  1.0
[/CIF]
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The crystal structure described by Sr2GeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Ge(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Ge(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing OSr4Ge trigonal bipyramids. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(1), two equivalent Sr(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sr2GeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.226
_cell_length_b   5.849
_cell_length_c   11.110
_cell_angle_alpha   63.027
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   418.462
_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
  Sr  Sr0  1  0.347  0.300  0.429  1.0
  Sr  Sr1  1  0.847  0.700  0.071  1.0
  Sr  Sr2  1  0.653  0.700  0.571  1.0
  Sr  Sr3  1  0.153  0.300  0.929  1.0
  Sr  Sr4  1  0.997  0.020  0.700  1.0
  Sr  Sr5  1  0.497  0.980  0.800  1.0
  Sr  Sr6  1  0.003  0.980  0.300  1.0
  Sr  Sr7  1  0.503  0.020  0.200  1.0
  Ge  Ge8  1  0.783  0.347  0.418  1.0
  Ge  Ge9  1  0.283  0.653  0.082  1.0
  Ge  Ge10  1  0.217  0.653  0.582  1.0
  Ge  Ge11  1  0.717  0.347  0.918  1.0
  O  O12  1  0.018  0.276  0.439  1.0
  O  O13  1  0.518  0.724  0.061  1.0
  O  O14  1  0.982  0.724  0.561  1.0
  O  O15  1  0.482  0.276  0.939  1.0
  O  O16  1  0.670  0.264  0.574  1.0
  O  O17  1  0.170  0.736  0.926  1.0
  O  O18  1  0.330  0.736  0.426  1.0
  O  O19  1  0.830  0.264  0.074  1.0
  O  O20  1  0.670  0.144  0.361  1.0
  O  O21  1  0.170  0.856  0.139  1.0
  O  O22  1  0.330  0.856  0.639  1.0
  O  O23  1  0.830  0.144  0.861  1.0
  O  O24  1  0.747  0.674  0.307  1.0
  O  O25  1  0.247  0.326  0.193  1.0
  O  O26  1  0.253  0.326  0.693  1.0
  O  O27  1  0.753  0.674  0.807  1.0
[/CIF]
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