The structure described by Ag4HgGe2S7 is Stannite-like structured and crystallizes in the monoclinic Cc space group. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(1), one S(5), one S(6), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(3)S4 tetrahedra,  a cornercorner with one Ag(4)S4 tetrahedra, corners with two equivalent Hg(1)S4 tetrahedra, corners with two equivalent Ge(2)S4 tetrahedra, corners with three equivalent Ag(2)S4 tetrahedra, and corners with three equivalent Ge(1)S4 tetrahedra. In the second Ag site, Ag(2) is bonded to one S(1), one S(2), one S(6), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(4)S4 tetrahedra,  a cornercorner with one Hg(1)S4 tetrahedra, corners with two equivalent Ag(3)S4 tetrahedra, corners with two equivalent Ge(1)S4 tetrahedra, corners with three equivalent Ag(1)S4 tetrahedra, and corners with three equivalent Ge(2)S4 tetrahedra. In the third Ag site, Ag(3) is bonded to one S(2), one S(3), one S(4), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(1)S4 tetrahedra,  a cornercorner with one Ge(1)S4 tetrahedra, corners with two equivalent Ag(2)S4 tetrahedra, corners with two equivalent Hg(1)S4 tetrahedra, corners with three equivalent Ag(4)S4 tetrahedra, and corners with three equivalent Ge(2)S4 tetrahedra. In the fourth Ag site, Ag(4) is bonded to one S(2), one S(3), one S(4), and one S(5) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(1)S4 tetrahedra,  a cornercorner with one Ag(2)S4 tetrahedra, corners with two equivalent Ge(1)S4 tetrahedra, corners with two equivalent Ge(2)S4 tetrahedra, corners with three equivalent Ag(3)S4 tetrahedra, and corners with three equivalent Hg(1)S4 tetrahedra. Hg(1) is bonded to one S(3), one S(4), one S(5), and one S(6) atom to form HgS4 tetrahedra that share  a cornercorner with one Ag(2)S4 tetrahedra,  a cornercorner with one Ge(2)S4 tetrahedra, corners with two equivalent Ag(1)S4 tetrahedra, corners with two equivalent Ag(3)S4 tetrahedra, corners with three equivalent Ag(4)S4 tetrahedra, and corners with three equivalent Ge(1)S4 tetrahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one S(1), one S(4), one S(5), and one S(6) atom to form GeS4 tetrahedra that share  a cornercorner with one Ag(3)S4 tetrahedra,  a cornercorner with one Ge(2)S4 tetrahedra, corners with two equivalent Ag(2)S4 tetrahedra, corners with two equivalent Ag(4)S4 tetrahedra, corners with three equivalent Ag(1)S4 tetrahedra, and corners with three equivalent Hg(1)S4 tetrahedra. In the second Ge site, Ge(2) is bonded to one S(1), one S(2), one S(3), and one S(7) atom to form GeS4 tetrahedra that share  a cornercorner with one Hg(1)S4 tetrahedra,  a cornercorner with one Ge(1)S4 tetrahedra, corners with two equivalent Ag(1)S4 tetrahedra, corners with two equivalent Ag(4)S4 tetrahedra, corners with three equivalent Ag(2)S4 tetrahedra, and corners with three equivalent Ag(3)S4 tetrahedra. There are seven inequivalent S sites. In the first S site, S(3) is bonded to one Ag(3), one Ag(4), one Hg(1), and one Ge(2) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(1)Ag2Ge2 tetrahedra,  a cornercorner with one S(6)Ag2HgGe tetrahedra, corners with two equivalent S(5)Ag2HgGe tetrahedra, corners with two equivalent S(7)Ag3Ge tetrahedra, corners with three equivalent S(2)Ag3Ge tetrahedra, and corners with three equivalent S(4)Ag2HgGe trigonal pyramids. In the second S site, S(4) is bonded to one Ag(3), one Ag(4), one Hg(1), and one Ge(1) atom to form distorted SAg2HgGe trigonal pyramids that share  a cornercorner with one S(1)Ag2Ge2 tetrahedra,  a cornercorner with one S(7)Ag3Ge tetrahedra, corners with two equivalent S(6)Ag2HgGe tetrahedra, corners with two equivalent S(2)Ag3Ge tetrahedra, corners with three equivalent S(3)Ag2HgGe tetrahedra, and corners with three equivalent S(5)Ag2HgGe tetrahedra. In the third S site, S(5) is bonded to one Ag(1), one Ag(4), one Hg(1), and one Ge(1) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(2)Ag3Ge tetrahedra,  a cornercorner with one S(7)Ag3Ge tetrahedra, corners with two equivalent S(1)Ag2Ge2 tetrahedra, corners with two equivalent S(3)Ag2HgGe tetrahedra, corners with three equivalent S(6)Ag2HgGe tetrahedra, and corners with three equivalent S(4)Ag2HgGe trigonal pyramids. In the fourth S site, S(6) is bonded to one Ag(1), one Ag(2), one Hg(1), and one Ge(1) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(3)Ag2HgGe tetrahedra,  a cornercorner with one S(2)Ag3Ge tetrahedra, corners with two equivalent S(7)Ag3Ge tetrahedra, corners with three equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(5)Ag2HgGe tetrahedra, and corners with two equivalent S(4)Ag2HgGe trigonal pyramids. In the fifth S site, S(7) is bonded to one Ag(1), one Ag(2), one Ag(3), and one Ge(2) atom to form SAg3Ge tetrahedra that share  a cornercorner with one S(5)Ag2HgGe tetrahedra, corners with two equivalent S(3)Ag2HgGe tetrahedra, corners with two equivalent S(6)Ag2HgGe tetrahedra, corners with three equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(2)Ag3Ge tetrahedra, and  a cornercorner with one S(4)Ag2HgGe trigonal pyramid. In the sixth S site, S(1) is bonded to one Ag(1), one Ag(2), one Ge(1), and one Ge(2) atom to form SAg2Ge2 tetrahedra that share  a cornercorner with one S(3)Ag2HgGe tetrahedra, corners with two equivalent S(5)Ag2HgGe tetrahedra, corners with two equivalent S(2)Ag3Ge tetrahedra, corners with three equivalent S(6)Ag2HgGe tetrahedra, corners with three equivalent S(7)Ag3Ge tetrahedra, and  a cornercorner with one S(4)Ag2HgGe trigonal pyramid. In the seventh S site, S(2) is bonded to one Ag(2), one Ag(3), one Ag(4), and one Ge(2) atom to form SAg3Ge tetrahedra that share  a cornercorner with one S(5)Ag2HgGe tetrahedra,  a cornercorner with one S(6)Ag2HgGe tetrahedra, corners with two equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(3)Ag2HgGe tetrahedra, corners with three equivalent S(7)Ag3Ge tetrahedra, and corners with two equivalent S(4)Ag2HgGe trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag4HgGe2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.569
_cell_length_b   9.569
_cell_length_c   10.663
_cell_angle_alpha   87.117
_cell_angle_beta   87.117
_cell_angle_gamma   42.579
_symmetry_Int_Tables_number   1
_cell_volume   659.648
_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
  Ag  Ag0  1  0.829  0.180  0.001  1.0
  Ag  Ag1  1  0.180  0.829  0.501  1.0
  Ag  Ag2  1  0.610  0.261  0.387  1.0
  Ag  Ag3  1  0.261  0.610  0.887  1.0
  Ag  Ag4  1  0.470  0.106  0.098  1.0
  Ag  Ag5  1  0.106  0.470  0.598  1.0
  Ag  Ag6  1  0.599  0.852  0.445  1.0
  Ag  Ag7  1  0.852  0.599  0.945  1.0
  Hg  Hg8  1  0.967  0.334  0.287  1.0
  Hg  Hg9  1  0.334  0.967  0.787  1.0
  Ge  Ge10  1  0.400  0.745  0.171  1.0
  Ge  Ge11  1  0.745  0.400  0.671  1.0
  Ge  Ge12  1  0.036  0.690  0.245  1.0
  Ge  Ge13  1  0.690  0.036  0.745  1.0
  S  S14  1  0.800  0.138  0.597  1.0
  S  S15  1  0.138  0.800  0.097  1.0
  S  S16  1  0.702  0.967  0.283  1.0
  S  S17  1  0.967  0.702  0.783  1.0
  S  S18  1  0.088  0.452  0.141  1.0
  S  S19  1  0.452  0.088  0.641  1.0
  S  S20  1  0.473  0.857  0.019  1.0
  S  S21  1  0.857  0.473  0.519  1.0
  S  S22  1  0.295  0.935  0.341  1.0
  S  S23  1  0.935  0.295  0.841  1.0
  S  S24  1  0.402  0.673  0.705  1.0
  S  S25  1  0.673  0.402  0.205  1.0
  S  S26  1  0.218  0.559  0.418  1.0
  S  S27  1  0.559  0.218  0.918  1.0
[/CIF]
.
The structure described by Ag4HgGe2S7 is Stannite-like structured and crystallizes in the monoclinic Cc space group. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(1), one S(5), one S(6), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(3)S4 tetrahedra,  a cornercorner with one Ag(4)S4 tetrahedra, corners with two equivalent Hg(1)S4 tetrahedra, corners with two equivalent Ge(2)S4 tetrahedra, corners with three equivalent Ag(2)S4 tetrahedra, and corners with three equivalent Ge(1)S4 tetrahedra. In the second Ag site, Ag(2) is bonded to one S(1), one S(2), one S(6), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(4)S4 tetrahedra,  a cornercorner with one Hg(1)S4 tetrahedra, corners with two equivalent Ag(3)S4 tetrahedra, corners with two equivalent Ge(1)S4 tetrahedra, corners with three equivalent Ag(1)S4 tetrahedra, and corners with three equivalent Ge(2)S4 tetrahedra. In the third Ag site, Ag(3) is bonded to one S(2), one S(3), one S(4), and one S(7) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(1)S4 tetrahedra,  a cornercorner with one Ge(1)S4 tetrahedra, corners with two equivalent Ag(2)S4 tetrahedra, corners with two equivalent Hg(1)S4 tetrahedra, corners with three equivalent Ag(4)S4 tetrahedra, and corners with three equivalent Ge(2)S4 tetrahedra. In the fourth Ag site, Ag(4) is bonded to one S(2), one S(3), one S(4), and one S(5) atom to form AgS4 tetrahedra that share  a cornercorner with one Ag(1)S4 tetrahedra,  a cornercorner with one Ag(2)S4 tetrahedra, corners with two equivalent Ge(1)S4 tetrahedra, corners with two equivalent Ge(2)S4 tetrahedra, corners with three equivalent Ag(3)S4 tetrahedra, and corners with three equivalent Hg(1)S4 tetrahedra. Hg(1) is bonded to one S(3), one S(4), one S(5), and one S(6) atom to form HgS4 tetrahedra that share  a cornercorner with one Ag(2)S4 tetrahedra,  a cornercorner with one Ge(2)S4 tetrahedra, corners with two equivalent Ag(1)S4 tetrahedra, corners with two equivalent Ag(3)S4 tetrahedra, corners with three equivalent Ag(4)S4 tetrahedra, and corners with three equivalent Ge(1)S4 tetrahedra. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded to one S(1), one S(4), one S(5), and one S(6) atom to form GeS4 tetrahedra that share  a cornercorner with one Ag(3)S4 tetrahedra,  a cornercorner with one Ge(2)S4 tetrahedra, corners with two equivalent Ag(2)S4 tetrahedra, corners with two equivalent Ag(4)S4 tetrahedra, corners with three equivalent Ag(1)S4 tetrahedra, and corners with three equivalent Hg(1)S4 tetrahedra. In the second Ge site, Ge(2) is bonded to one S(1), one S(2), one S(3), and one S(7) atom to form GeS4 tetrahedra that share  a cornercorner with one Hg(1)S4 tetrahedra,  a cornercorner with one Ge(1)S4 tetrahedra, corners with two equivalent Ag(1)S4 tetrahedra, corners with two equivalent Ag(4)S4 tetrahedra, corners with three equivalent Ag(2)S4 tetrahedra, and corners with three equivalent Ag(3)S4 tetrahedra. There are seven inequivalent S sites. In the first S site, S(3) is bonded to one Ag(3), one Ag(4), one Hg(1), and one Ge(2) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(1)Ag2Ge2 tetrahedra,  a cornercorner with one S(6)Ag2HgGe tetrahedra, corners with two equivalent S(5)Ag2HgGe tetrahedra, corners with two equivalent S(7)Ag3Ge tetrahedra, corners with three equivalent S(2)Ag3Ge tetrahedra, and corners with three equivalent S(4)Ag2HgGe trigonal pyramids. In the second S site, S(4) is bonded to one Ag(3), one Ag(4), one Hg(1), and one Ge(1) atom to form distorted SAg2HgGe trigonal pyramids that share  a cornercorner with one S(1)Ag2Ge2 tetrahedra,  a cornercorner with one S(7)Ag3Ge tetrahedra, corners with two equivalent S(6)Ag2HgGe tetrahedra, corners with two equivalent S(2)Ag3Ge tetrahedra, corners with three equivalent S(3)Ag2HgGe tetrahedra, and corners with three equivalent S(5)Ag2HgGe tetrahedra. In the third S site, S(5) is bonded to one Ag(1), one Ag(4), one Hg(1), and one Ge(1) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(2)Ag3Ge tetrahedra,  a cornercorner with one S(7)Ag3Ge tetrahedra, corners with two equivalent S(1)Ag2Ge2 tetrahedra, corners with two equivalent S(3)Ag2HgGe tetrahedra, corners with three equivalent S(6)Ag2HgGe tetrahedra, and corners with three equivalent S(4)Ag2HgGe trigonal pyramids. In the fourth S site, S(6) is bonded to one Ag(1), one Ag(2), one Hg(1), and one Ge(1) atom to form SAg2HgGe tetrahedra that share  a cornercorner with one S(3)Ag2HgGe tetrahedra,  a cornercorner with one S(2)Ag3Ge tetrahedra, corners with two equivalent S(7)Ag3Ge tetrahedra, corners with three equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(5)Ag2HgGe tetrahedra, and corners with two equivalent S(4)Ag2HgGe trigonal pyramids. In the fifth S site, S(7) is bonded to one Ag(1), one Ag(2), one Ag(3), and one Ge(2) atom to form SAg3Ge tetrahedra that share  a cornercorner with one S(5)Ag2HgGe tetrahedra, corners with two equivalent S(3)Ag2HgGe tetrahedra, corners with two equivalent S(6)Ag2HgGe tetrahedra, corners with three equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(2)Ag3Ge tetrahedra, and  a cornercorner with one S(4)Ag2HgGe trigonal pyramid. In the sixth S site, S(1) is bonded to one Ag(1), one Ag(2), one Ge(1), and one Ge(2) atom to form SAg2Ge2 tetrahedra that share  a cornercorner with one S(3)Ag2HgGe tetrahedra, corners with two equivalent S(5)Ag2HgGe tetrahedra, corners with two equivalent S(2)Ag3Ge tetrahedra, corners with three equivalent S(6)Ag2HgGe tetrahedra, corners with three equivalent S(7)Ag3Ge tetrahedra, and  a cornercorner with one S(4)Ag2HgGe trigonal pyramid. In the seventh S site, S(2) is bonded to one Ag(2), one Ag(3), one Ag(4), and one Ge(2) atom to form SAg3Ge tetrahedra that share  a cornercorner with one S(5)Ag2HgGe tetrahedra,  a cornercorner with one S(6)Ag2HgGe tetrahedra, corners with two equivalent S(1)Ag2Ge2 tetrahedra, corners with three equivalent S(3)Ag2HgGe tetrahedra, corners with three equivalent S(7)Ag3Ge tetrahedra, and corners with two equivalent S(4)Ag2HgGe trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ag4HgGe2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.569
_cell_length_b   9.569
_cell_length_c   10.663
_cell_angle_alpha   87.117
_cell_angle_beta   87.117
_cell_angle_gamma   42.579
_symmetry_Int_Tables_number   1
_cell_volume   659.648
_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
  Ag  Ag0  1  0.829  0.180  0.001  1.0
  Ag  Ag1  1  0.180  0.829  0.501  1.0
  Ag  Ag2  1  0.610  0.261  0.387  1.0
  Ag  Ag3  1  0.261  0.610  0.887  1.0
  Ag  Ag4  1  0.470  0.106  0.098  1.0
  Ag  Ag5  1  0.106  0.470  0.598  1.0
  Ag  Ag6  1  0.599  0.852  0.445  1.0
  Ag  Ag7  1  0.852  0.599  0.945  1.0
  Hg  Hg8  1  0.967  0.334  0.287  1.0
  Hg  Hg9  1  0.334  0.967  0.787  1.0
  Ge  Ge10  1  0.400  0.745  0.171  1.0
  Ge  Ge11  1  0.745  0.400  0.671  1.0
  Ge  Ge12  1  0.036  0.690  0.245  1.0
  Ge  Ge13  1  0.690  0.036  0.745  1.0
  S  S14  1  0.800  0.138  0.597  1.0
  S  S15  1  0.138  0.800  0.097  1.0
  S  S16  1  0.702  0.967  0.283  1.0
  S  S17  1  0.967  0.702  0.783  1.0
  S  S18  1  0.088  0.452  0.141  1.0
  S  S19  1  0.452  0.088  0.641  1.0
  S  S20  1  0.473  0.857  0.019  1.0
  S  S21  1  0.857  0.473  0.519  1.0
  S  S22  1  0.295  0.935  0.341  1.0
  S  S23  1  0.935  0.295  0.841  1.0
  S  S24  1  0.402  0.673  0.705  1.0
  S  S25  1  0.673  0.402  0.205  1.0
  S  S26  1  0.218  0.559  0.418  1.0
  S  S27  1  0.559  0.218  0.918  1.0
[/CIF]
.