The crystal structure described by Na3GeCPO7 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. In the third Na site, Na(3) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form distorted NaO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra and faces with two equivalent Na(3)O6 octahedra. Ge(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(7) atom. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(5) atom. P(1) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-71°. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), two equivalent Na(1), and one C(1) atom to form distorted corner-sharing ONa3C trigonal pyramids. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), two equivalent Na(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na(3), one Ge(1), and one C(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Na(3), and one P(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Ge(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3GePCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.884
_cell_length_b   5.487
_cell_length_c   9.259
_cell_angle_alpha   84.556
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   348.142
_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
  Na  Na0  1  0.529  0.999  0.015  1.0
  Na  Na1  1  0.816  0.515  0.158  1.0
  Na  Na2  1  0.532  0.485  0.500  1.0
  Na  Na3  1  0.032  0.515  0.500  1.0
  Na  Na4  1  0.316  0.485  0.842  1.0
  Na  Na5  1  0.029  0.001  0.985  1.0
  Ge  Ge6  1  0.254  0.081  0.327  1.0
  Ge  Ge7  1  0.754  0.919  0.673  1.0
  P  P8  1  0.750  0.014  0.330  1.0
  P  P9  1  0.250  0.986  0.670  1.0
  C  C10  1  0.268  0.486  0.137  1.0
  C  C11  1  0.768  0.514  0.863  1.0
  O  O12  1  0.278  0.696  0.067  1.0
  O  O13  1  0.244  0.288  0.072  1.0
  O  O14  1  0.853  0.919  0.200  1.0
  O  O15  1  0.529  0.046  0.285  1.0
  O  O16  1  0.280  0.456  0.282  1.0
  O  O17  1  0.823  0.262  0.374  1.0
  O  O18  1  0.769  0.812  0.463  1.0
  O  O19  1  0.269  0.188  0.537  1.0
  O  O20  1  0.323  0.738  0.626  1.0
  O  O21  1  0.780  0.544  0.718  1.0
  O  O22  1  0.029  0.954  0.715  1.0
  O  O23  1  0.353  0.081  0.800  1.0
  O  O24  1  0.744  0.712  0.928  1.0
  O  O25  1  0.778  0.304  0.933  1.0
[/CIF]
.
The crystal structure described by Na3GeCPO7 crystallizes in the monoclinic P2_1 space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 7-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(6) atom. In the third Na site, Na(3) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form distorted NaO6 octahedra that share corners with four equivalent P(1)O4 tetrahedra and faces with two equivalent Na(3)O6 octahedra. Ge(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(7) atom. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(5) atom. P(1) is bonded to one O(3), one O(4), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with four equivalent Na(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-71°. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), two equivalent Na(1), and one C(1) atom to form distorted corner-sharing ONa3C trigonal pyramids. In the second O site, O(2) is bonded in a 1-coordinate geometry to one Na(2), two equivalent Na(1), and one C(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Na(2), two equivalent Na(1), and one P(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Na(1), one Ge(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na(3), one Ge(1), and one C(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Na(2), two equivalent Na(3), and one P(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to two equivalent Na(3), one Ge(1), and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na3GePCO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.884
_cell_length_b   5.487
_cell_length_c   9.259
_cell_angle_alpha   84.556
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   348.142
_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
  Na  Na0  1  0.529  0.999  0.015  1.0
  Na  Na1  1  0.816  0.515  0.158  1.0
  Na  Na2  1  0.532  0.485  0.500  1.0
  Na  Na3  1  0.032  0.515  0.500  1.0
  Na  Na4  1  0.316  0.485  0.842  1.0
  Na  Na5  1  0.029  0.001  0.985  1.0
  Ge  Ge6  1  0.254  0.081  0.327  1.0
  Ge  Ge7  1  0.754  0.919  0.673  1.0
  P  P8  1  0.750  0.014  0.330  1.0
  P  P9  1  0.250  0.986  0.670  1.0
  C  C10  1  0.268  0.486  0.137  1.0
  C  C11  1  0.768  0.514  0.863  1.0
  O  O12  1  0.278  0.696  0.067  1.0
  O  O13  1  0.244  0.288  0.072  1.0
  O  O14  1  0.853  0.919  0.200  1.0
  O  O15  1  0.529  0.046  0.285  1.0
  O  O16  1  0.280  0.456  0.282  1.0
  O  O17  1  0.823  0.262  0.374  1.0
  O  O18  1  0.769  0.812  0.463  1.0
  O  O19  1  0.269  0.188  0.537  1.0
  O  O20  1  0.323  0.738  0.626  1.0
  O  O21  1  0.780  0.544  0.718  1.0
  O  O22  1  0.029  0.954  0.715  1.0
  O  O23  1  0.353  0.081  0.800  1.0
  O  O24  1  0.744  0.712  0.928  1.0
  O  O25  1  0.778  0.304  0.933  1.0
[/CIF]
.