The compound described by Ag2AsS2 crystallizes in the monoclinic Pc space group. There are eight inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(3), one S(6), and two equivalent S(1) atoms to form corner-sharing AgS4 tetrahedra. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one S(2), one S(3), and two equivalent S(7) atoms. In the third Ag site, Ag(3) is bonded to one S(4), one S(8), and two equivalent S(2) atoms to form distorted AgS4 tetrahedra that share corners with two equivalent Ag(3)S4 tetrahedra and corners with three equivalent As(4)AgAsS2 tetrahedra. In the fourth Ag site, Ag(4) is bonded in a 5-coordinate geometry to one As(3), one As(4), one S(3), and two equivalent S(8) atoms. In the fifth Ag site, Ag(5) is bonded in a 4-coordinate geometry to one As(1), one S(4), and two equivalent S(6) atoms. In the sixth Ag site, Ag(6) is bonded in a 4-coordinate geometry to one S(2), one S(3), one S(5), and one S(7) atom. In the seventh Ag site, Ag(7) is bonded in a linear geometry to two equivalent S(5) atoms. In the eighth Ag site, Ag(8) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(4) atom. There are four inequivalent As sites. In the first As site, As(1) is bonded in a 4-coordinate geometry to one Ag(5), one As(3), one S(1), and one S(3) atom. In the second As site, As(2) is bonded in a distorted water-like geometry to one As(4), one S(5), and one S(6) atom. In the third As site, As(3) is bonded in a distorted water-like geometry to one Ag(4), one As(1), one S(7), and one S(8) atom. In the fourth As site, As(4) is bonded to one Ag(4), one As(2), one S(2), and one S(4) atom to form distorted AsAgAsS2 tetrahedra that share  a cornercorner with one S(6)Ag3As tetrahedra, corners with two equivalent S(8)Ag3As tetrahedra, and corners with three equivalent Ag(3)S4 tetrahedra. There are eight inequivalent S sites. In the first S site, S(1) is bonded to one Ag(8), two equivalent Ag(1), and one As(1) atom to form corner-sharing SAg3As trigonal pyramids. In the second S site, S(2) is bonded to one Ag(2), one Ag(6), two equivalent Ag(3), and one As(4) atom to form distorted SAg4As trigonal bipyramids that share corners with two equivalent S(8)Ag3As tetrahedra, corners with three equivalent S(4)Ag3As tetrahedra, corners with three equivalent S(7)Ag3As tetrahedra, and corners with two equivalent S(2)Ag4As trigonal bipyramids. In the third S site, S(3) is bonded in a 6-coordinate geometry to one Ag(1), one Ag(2), one Ag(4), one Ag(6), one Ag(8), and one As(1) atom. In the fourth S site, S(4) is bonded to one Ag(3), one Ag(5), one Ag(8), and one As(4) atom to form SAg3As tetrahedra that share  a cornercorner with one S(8)Ag3As tetrahedra, corners with two equivalent S(6)Ag3As tetrahedra, corners with three equivalent S(2)Ag4As trigonal bipyramids, and  a cornercorner with one S(1)Ag3As trigonal pyramid. In the fifth S site, S(5) is bonded in a distorted rectangular see-saw-like geometry to one Ag(6), two equivalent Ag(7), and one As(2) atom. In the sixth S site, S(6) is bonded to one Ag(1), two equivalent Ag(5), and one As(2) atom to form SAg3As tetrahedra that share  a cornercorner with one As(4)AgAsS2 tetrahedra, corners with two equivalent S(4)Ag3As tetrahedra, corners with two equivalent S(6)Ag3As tetrahedra, and corners with two equivalent S(1)Ag3As trigonal pyramids. In the seventh S site, S(7) is bonded to one Ag(6), two equivalent Ag(2), and one As(3) atom to form SAg3As tetrahedra that share  a cornercorner with one S(8)Ag3As tetrahedra, corners with two equivalent S(7)Ag3As tetrahedra, and corners with three equivalent S(2)Ag4As trigonal bipyramids. In the eighth S site, S(8) is bonded to one Ag(3), two equivalent Ag(4), and one As(3) atom to form SAg3As tetrahedra that share  a cornercorner with one S(4)Ag3As tetrahedra,  a cornercorner with one S(7)Ag3As tetrahedra, corners with two equivalent As(4)AgAsS2 tetrahedra, corners with two equivalent S(8)Ag3As tetrahedra, and corners with two equivalent S(2)Ag4As trigonal bipyramids. is represented by the CIF file [CIF]
data_Ag2AsS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.195
_cell_length_b   6.928
_cell_length_c   9.757
_cell_angle_alpha   81.299
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   881.721
_cell_formula_units_Z   8
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  0.594  0.079  0.237  1.0
  Ag  Ag1  1  0.406  0.579  0.237  1.0
  Ag  Ag2  1  0.911  0.776  0.041  1.0
  Ag  Ag3  1  0.089  0.276  0.041  1.0
  Ag  Ag4  1  0.907  0.375  0.693  1.0
  Ag  Ag5  1  0.093  0.875  0.693  1.0
  Ag  Ag6  1  0.893  0.870  0.358  1.0
  Ag  Ag7  1  0.107  0.370  0.358  1.0
  Ag  Ag8  1  0.606  0.602  0.567  1.0
  Ag  Ag9  1  0.394  0.102  0.567  1.0
  Ag  Ag10  1  0.792  0.193  0.960  1.0
  Ag  Ag11  1  0.208  0.693  0.960  1.0
  Ag  Ag12  1  0.494  0.849  0.840  1.0
  Ag  Ag13  1  0.506  0.349  0.840  1.0
  Ag  Ag14  1  0.685  0.643  0.962  1.0
  Ag  Ag15  1  0.315  0.143  0.962  1.0
  As  As16  1  0.687  0.559  0.314  1.0
  As  As17  1  0.313  0.059  0.314  1.0
  As  As18  1  0.683  0.149  0.617  1.0
  As  As19  1  0.317  0.649  0.617  1.0
  As  As20  1  0.833  0.315  0.307  1.0
  As  As21  1  0.167  0.815  0.307  1.0
  As  As22  1  0.823  0.893  0.626  1.0
  As  As23  1  0.177  0.393  0.626  1.0
  S  S24  1  0.582  0.451  0.157  1.0
  S  S25  1  0.418  0.951  0.157  1.0
  S  S26  1  0.918  0.004  0.793  1.0
  S  S27  1  0.082  0.504  0.793  1.0
  S  S28  1  0.745  0.847  0.191  1.0
  S  S29  1  0.255  0.347  0.191  1.0
  S  S30  1  0.754  0.610  0.733  1.0
  S  S31  1  0.246  0.110  0.733  1.0
  S  S32  1  0.631  0.089  0.846  1.0
  S  S33  1  0.369  0.589  0.846  1.0
  S  S34  1  0.568  0.981  0.512  1.0
  S  S35  1  0.432  0.481  0.512  1.0
  S  S36  1  0.899  0.397  0.090  1.0
  S  S37  1  0.101  0.897  0.090  1.0
  S  S38  1  0.935  0.488  0.428  1.0
  S  S39  1  0.065  0.988  0.428  1.0
[/CIF]
.
The compound described by Ag2AsS2 crystallizes in the monoclinic Pc space group. There are eight inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(3), one S(6), and two equivalent S(1) atoms to form corner-sharing AgS4 tetrahedra. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one S(2), one S(3), and two equivalent S(7) atoms. In the third Ag site, Ag(3) is bonded to one S(4), one S(8), and two equivalent S(2) atoms to form distorted AgS4 tetrahedra that share corners with two equivalent Ag(3)S4 tetrahedra and corners with three equivalent As(4)AgAsS2 tetrahedra. In the fourth Ag site, Ag(4) is bonded in a 5-coordinate geometry to one As(3), one As(4), one S(3), and two equivalent S(8) atoms. In the fifth Ag site, Ag(5) is bonded in a 4-coordinate geometry to one As(1), one S(4), and two equivalent S(6) atoms. In the sixth Ag site, Ag(6) is bonded in a 4-coordinate geometry to one S(2), one S(3), one S(5), and one S(7) atom. In the seventh Ag site, Ag(7) is bonded in a linear geometry to two equivalent S(5) atoms. In the eighth Ag site, Ag(8) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(4) atom. There are four inequivalent As sites. In the first As site, As(1) is bonded in a 4-coordinate geometry to one Ag(5), one As(3), one S(1), and one S(3) atom. In the second As site, As(2) is bonded in a distorted water-like geometry to one As(4), one S(5), and one S(6) atom. In the third As site, As(3) is bonded in a distorted water-like geometry to one Ag(4), one As(1), one S(7), and one S(8) atom. In the fourth As site, As(4) is bonded to one Ag(4), one As(2), one S(2), and one S(4) atom to form distorted AsAgAsS2 tetrahedra that share  a cornercorner with one S(6)Ag3As tetrahedra, corners with two equivalent S(8)Ag3As tetrahedra, and corners with three equivalent Ag(3)S4 tetrahedra. There are eight inequivalent S sites. In the first S site, S(1) is bonded to one Ag(8), two equivalent Ag(1), and one As(1) atom to form corner-sharing SAg3As trigonal pyramids. In the second S site, S(2) is bonded to one Ag(2), one Ag(6), two equivalent Ag(3), and one As(4) atom to form distorted SAg4As trigonal bipyramids that share corners with two equivalent S(8)Ag3As tetrahedra, corners with three equivalent S(4)Ag3As tetrahedra, corners with three equivalent S(7)Ag3As tetrahedra, and corners with two equivalent S(2)Ag4As trigonal bipyramids. In the third S site, S(3) is bonded in a 6-coordinate geometry to one Ag(1), one Ag(2), one Ag(4), one Ag(6), one Ag(8), and one As(1) atom. In the fourth S site, S(4) is bonded to one Ag(3), one Ag(5), one Ag(8), and one As(4) atom to form SAg3As tetrahedra that share  a cornercorner with one S(8)Ag3As tetrahedra, corners with two equivalent S(6)Ag3As tetrahedra, corners with three equivalent S(2)Ag4As trigonal bipyramids, and  a cornercorner with one S(1)Ag3As trigonal pyramid. In the fifth S site, S(5) is bonded in a distorted rectangular see-saw-like geometry to one Ag(6), two equivalent Ag(7), and one As(2) atom. In the sixth S site, S(6) is bonded to one Ag(1), two equivalent Ag(5), and one As(2) atom to form SAg3As tetrahedra that share  a cornercorner with one As(4)AgAsS2 tetrahedra, corners with two equivalent S(4)Ag3As tetrahedra, corners with two equivalent S(6)Ag3As tetrahedra, and corners with two equivalent S(1)Ag3As trigonal pyramids. In the seventh S site, S(7) is bonded to one Ag(6), two equivalent Ag(2), and one As(3) atom to form SAg3As tetrahedra that share  a cornercorner with one S(8)Ag3As tetrahedra, corners with two equivalent S(7)Ag3As tetrahedra, and corners with three equivalent S(2)Ag4As trigonal bipyramids. In the eighth S site, S(8) is bonded to one Ag(3), two equivalent Ag(4), and one As(3) atom to form SAg3As tetrahedra that share  a cornercorner with one S(4)Ag3As tetrahedra,  a cornercorner with one S(7)Ag3As tetrahedra, corners with two equivalent As(4)AgAsS2 tetrahedra, corners with two equivalent S(8)Ag3As tetrahedra, and corners with two equivalent S(2)Ag4As trigonal bipyramids. is represented by the CIF file [CIF]
data_Ag2AsS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.195
_cell_length_b   6.928
_cell_length_c   9.757
_cell_angle_alpha   81.299
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   881.721
_cell_formula_units_Z   8
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  0.594  0.079  0.237  1.0
  Ag  Ag1  1  0.406  0.579  0.237  1.0
  Ag  Ag2  1  0.911  0.776  0.041  1.0
  Ag  Ag3  1  0.089  0.276  0.041  1.0
  Ag  Ag4  1  0.907  0.375  0.693  1.0
  Ag  Ag5  1  0.093  0.875  0.693  1.0
  Ag  Ag6  1  0.893  0.870  0.358  1.0
  Ag  Ag7  1  0.107  0.370  0.358  1.0
  Ag  Ag8  1  0.606  0.602  0.567  1.0
  Ag  Ag9  1  0.394  0.102  0.567  1.0
  Ag  Ag10  1  0.792  0.193  0.960  1.0
  Ag  Ag11  1  0.208  0.693  0.960  1.0
  Ag  Ag12  1  0.494  0.849  0.840  1.0
  Ag  Ag13  1  0.506  0.349  0.840  1.0
  Ag  Ag14  1  0.685  0.643  0.962  1.0
  Ag  Ag15  1  0.315  0.143  0.962  1.0
  As  As16  1  0.687  0.559  0.314  1.0
  As  As17  1  0.313  0.059  0.314  1.0
  As  As18  1  0.683  0.149  0.617  1.0
  As  As19  1  0.317  0.649  0.617  1.0
  As  As20  1  0.833  0.315  0.307  1.0
  As  As21  1  0.167  0.815  0.307  1.0
  As  As22  1  0.823  0.893  0.626  1.0
  As  As23  1  0.177  0.393  0.626  1.0
  S  S24  1  0.582  0.451  0.157  1.0
  S  S25  1  0.418  0.951  0.157  1.0
  S  S26  1  0.918  0.004  0.793  1.0
  S  S27  1  0.082  0.504  0.793  1.0
  S  S28  1  0.745  0.847  0.191  1.0
  S  S29  1  0.255  0.347  0.191  1.0
  S  S30  1  0.754  0.610  0.733  1.0
  S  S31  1  0.246  0.110  0.733  1.0
  S  S32  1  0.631  0.089  0.846  1.0
  S  S33  1  0.369  0.589  0.846  1.0
  S  S34  1  0.568  0.981  0.512  1.0
  S  S35  1  0.432  0.481  0.512  1.0
  S  S36  1  0.899  0.397  0.090  1.0
  S  S37  1  0.101  0.897  0.090  1.0
  S  S38  1  0.935  0.488  0.428  1.0
  S  S39  1  0.065  0.988  0.428  1.0
[/CIF]
.