The material described by Na5AgGe2S7 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one S(3), one S(4), two equivalent S(1), and two equivalent S(2) atoms to form distorted NaS6 octahedra that share  a cornercorner with one Na(1)S6 octahedra,  a cornercorner with one Na(2)S6 octahedra,  a cornercorner with one Ge(1)S4 tetrahedra, edges with two equivalent Na(1)S6 octahedra, edges with two equivalent Na(2)S6 octahedra, and edges with three equivalent Ge(1)S4 tetrahedra. The corner-sharing octahedral tilt angles range from 8-39°. In the second Na site, Na(2) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form NaS6 octahedra that share corners with two equivalent Na(1)S6 octahedra, corners with two equivalent Ge(1)S4 tetrahedra, edges with four equivalent Na(1)S6 octahedra, and edges with two equivalent Ge(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 8°. In the third Na site, Na(3) is bonded in a distorted rectangular see-saw-like geometry to one S(2), one S(3), and two equivalent S(1) atoms. Ag(1) is bonded in a 4-coordinate geometry to two equivalent S(2) and two equivalent S(3) atoms. Ge(1) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form GeS4 tetrahedra that share  a cornercorner with one Na(1)S6 octahedra,  a cornercorner with one Na(2)S6 octahedra,  a cornercorner with one Ge(1)S4 tetrahedra,  an edgeedge with one Na(2)S6 octahedra, and edges with three equivalent Na(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 19-62°. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Na(2), two equivalent Na(1), two equivalent Na(3), and one Ge(1) atom to form SNa5Ge octahedra that share  a cornercorner with one S(2)Na4AgGe octahedra,  a cornercorner with one S(1)Na5Ge octahedra, corners with five equivalent S(3)Na3AgGe trigonal bipyramids, edges with two equivalent S(1)Na5Ge octahedra, edges with four equivalent S(2)Na4AgGe octahedra, and  an edgeedge with one S(3)Na3AgGe trigonal bipyramid. The corner-sharing octahedral tilt angles range from 0-8°. In the second S site, S(2) is bonded to one Na(2), one Na(3), two equivalent Na(1), one Ag(1), and one Ge(1) atom to form SNa4AgGe octahedra that share  a cornercorner with one S(1)Na5Ge octahedra, corners with two equivalent S(2)Na4AgGe octahedra, corners with two equivalent S(3)Na3AgGe trigonal bipyramids,  an edgeedge with one S(2)Na4AgGe octahedra, edges with four equivalent S(1)Na5Ge octahedra, and edges with three equivalent S(3)Na3AgGe trigonal bipyramids. The corner-sharing octahedral tilt angles range from 0-75°. In the third S site, S(3) is bonded to one Na(1), one Na(2), one Na(3), one Ag(1), and one Ge(1) atom to form distorted SNa3AgGe trigonal bipyramids that share corners with two equivalent S(2)Na4AgGe octahedra, corners with five equivalent S(1)Na5Ge octahedra, corners with two equivalent S(3)Na3AgGe trigonal bipyramids,  an edgeedge with one S(1)Na5Ge octahedra, and edges with three equivalent S(2)Na4AgGe octahedra. The corner-sharing octahedral tilt angles range from 18-78°. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to two equivalent Na(1) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Na5AgGe2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.934
_cell_length_b   6.934
_cell_length_c   14.979
_cell_angle_alpha   80.806
_cell_angle_beta   80.806
_cell_angle_gamma   96.525
_symmetry_Int_Tables_number   1
_cell_volume   694.555
_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  0.024  0.736  0.581  1.0
  Na  Na1  1  0.264  0.976  0.919  1.0
  Na  Na2  1  0.976  0.264  0.419  1.0
  Na  Na3  1  0.736  0.024  0.081  1.0
  Na  Na4  1  0.500  0.500  0.500  1.0
  Na  Na5  1  0.500  0.500  0.000  1.0
  Na  Na6  1  0.962  0.517  0.140  1.0
  Na  Na7  1  0.483  0.038  0.360  1.0
  Na  Na8  1  0.038  0.483  0.860  1.0
  Na  Na9  1  0.517  0.962  0.640  1.0
  Ag  Ag10  1  0.415  0.585  0.250  1.0
  Ag  Ag11  1  0.585  0.415  0.750  1.0
  Ge  Ge12  1  0.919  0.763  0.359  1.0
  Ge  Ge13  1  0.237  0.081  0.141  1.0
  Ge  Ge14  1  0.081  0.237  0.641  1.0
  Ge  Ge15  1  0.763  0.919  0.859  1.0
  S  S16  1  0.739  0.870  0.472  1.0
  S  S17  1  0.130  0.261  0.028  1.0
  S  S18  1  0.261  0.130  0.528  1.0
  S  S19  1  0.870  0.739  0.972  1.0
  S  S20  1  0.201  0.678  0.392  1.0
  S  S21  1  0.322  0.799  0.108  1.0
  S  S22  1  0.799  0.322  0.608  1.0
  S  S23  1  0.678  0.201  0.892  1.0
  S  S24  1  0.745  0.518  0.316  1.0
  S  S25  1  0.482  0.255  0.184  1.0
  S  S26  1  0.255  0.482  0.684  1.0
  S  S27  1  0.518  0.745  0.816  1.0
  S  S28  1  0.958  0.042  0.250  1.0
  S  S29  1  0.042  0.958  0.750  1.0
[/CIF]
.
The material described by Na5AgGe2S7 crystallizes in the monoclinic C2/c space group. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded to one S(3), one S(4), two equivalent S(1), and two equivalent S(2) atoms to form distorted NaS6 octahedra that share  a cornercorner with one Na(1)S6 octahedra,  a cornercorner with one Na(2)S6 octahedra,  a cornercorner with one Ge(1)S4 tetrahedra, edges with two equivalent Na(1)S6 octahedra, edges with two equivalent Na(2)S6 octahedra, and edges with three equivalent Ge(1)S4 tetrahedra. The corner-sharing octahedral tilt angles range from 8-39°. In the second Na site, Na(2) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form NaS6 octahedra that share corners with two equivalent Na(1)S6 octahedra, corners with two equivalent Ge(1)S4 tetrahedra, edges with four equivalent Na(1)S6 octahedra, and edges with two equivalent Ge(1)S4 tetrahedra. The corner-sharing octahedral tilt angles are 8°. In the third Na site, Na(3) is bonded in a distorted rectangular see-saw-like geometry to one S(2), one S(3), and two equivalent S(1) atoms. Ag(1) is bonded in a 4-coordinate geometry to two equivalent S(2) and two equivalent S(3) atoms. Ge(1) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form GeS4 tetrahedra that share  a cornercorner with one Na(1)S6 octahedra,  a cornercorner with one Na(2)S6 octahedra,  a cornercorner with one Ge(1)S4 tetrahedra,  an edgeedge with one Na(2)S6 octahedra, and edges with three equivalent Na(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 19-62°. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Na(2), two equivalent Na(1), two equivalent Na(3), and one Ge(1) atom to form SNa5Ge octahedra that share  a cornercorner with one S(2)Na4AgGe octahedra,  a cornercorner with one S(1)Na5Ge octahedra, corners with five equivalent S(3)Na3AgGe trigonal bipyramids, edges with two equivalent S(1)Na5Ge octahedra, edges with four equivalent S(2)Na4AgGe octahedra, and  an edgeedge with one S(3)Na3AgGe trigonal bipyramid. The corner-sharing octahedral tilt angles range from 0-8°. In the second S site, S(2) is bonded to one Na(2), one Na(3), two equivalent Na(1), one Ag(1), and one Ge(1) atom to form SNa4AgGe octahedra that share  a cornercorner with one S(1)Na5Ge octahedra, corners with two equivalent S(2)Na4AgGe octahedra, corners with two equivalent S(3)Na3AgGe trigonal bipyramids,  an edgeedge with one S(2)Na4AgGe octahedra, edges with four equivalent S(1)Na5Ge octahedra, and edges with three equivalent S(3)Na3AgGe trigonal bipyramids. The corner-sharing octahedral tilt angles range from 0-75°. In the third S site, S(3) is bonded to one Na(1), one Na(2), one Na(3), one Ag(1), and one Ge(1) atom to form distorted SNa3AgGe trigonal bipyramids that share corners with two equivalent S(2)Na4AgGe octahedra, corners with five equivalent S(1)Na5Ge octahedra, corners with two equivalent S(3)Na3AgGe trigonal bipyramids,  an edgeedge with one S(1)Na5Ge octahedra, and edges with three equivalent S(2)Na4AgGe octahedra. The corner-sharing octahedral tilt angles range from 18-78°. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to two equivalent Na(1) and two equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_Na5AgGe2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.934
_cell_length_b   6.934
_cell_length_c   14.979
_cell_angle_alpha   80.806
_cell_angle_beta   80.806
_cell_angle_gamma   96.525
_symmetry_Int_Tables_number   1
_cell_volume   694.555
_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  0.024  0.736  0.581  1.0
  Na  Na1  1  0.264  0.976  0.919  1.0
  Na  Na2  1  0.976  0.264  0.419  1.0
  Na  Na3  1  0.736  0.024  0.081  1.0
  Na  Na4  1  0.500  0.500  0.500  1.0
  Na  Na5  1  0.500  0.500  0.000  1.0
  Na  Na6  1  0.962  0.517  0.140  1.0
  Na  Na7  1  0.483  0.038  0.360  1.0
  Na  Na8  1  0.038  0.483  0.860  1.0
  Na  Na9  1  0.517  0.962  0.640  1.0
  Ag  Ag10  1  0.415  0.585  0.250  1.0
  Ag  Ag11  1  0.585  0.415  0.750  1.0
  Ge  Ge12  1  0.919  0.763  0.359  1.0
  Ge  Ge13  1  0.237  0.081  0.141  1.0
  Ge  Ge14  1  0.081  0.237  0.641  1.0
  Ge  Ge15  1  0.763  0.919  0.859  1.0
  S  S16  1  0.739  0.870  0.472  1.0
  S  S17  1  0.130  0.261  0.028  1.0
  S  S18  1  0.261  0.130  0.528  1.0
  S  S19  1  0.870  0.739  0.972  1.0
  S  S20  1  0.201  0.678  0.392  1.0
  S  S21  1  0.322  0.799  0.108  1.0
  S  S22  1  0.799  0.322  0.608  1.0
  S  S23  1  0.678  0.201  0.892  1.0
  S  S24  1  0.745  0.518  0.316  1.0
  S  S25  1  0.482  0.255  0.184  1.0
  S  S26  1  0.255  0.482  0.684  1.0
  S  S27  1  0.518  0.745  0.816  1.0
  S  S28  1  0.958  0.042  0.250  1.0
  S  S29  1  0.042  0.958  0.750  1.0
[/CIF]
.