The material structure described by YAgS2 crystallizes in the monoclinic P2_1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one S(1), one S(2), one S(4), one S(5), one S(6), and one S(8) atom to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 18-25°. In the second Y site, Y(2) is bonded to one S(4), one S(6), two equivalent S(3), and two equivalent S(5) atoms to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 19-24°. In the third Y site, Y(3) is bonded to one S(1), one S(3), one S(4), one S(6), one S(7), and one S(8) atom to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 18-25°. In the fourth Y site, Y(4) is bonded to one S(1), one S(8), two equivalent S(2), and two equivalent S(7) atoms to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 19-23°. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 2-coordinate geometry to one S(1), one S(3), one S(4), and one S(6) atom. In the second Ag site, Ag(2) is bonded in a 2-coordinate geometry to two equivalent S(3) and two equivalent S(5) atoms. In the third Ag site, Ag(3) is bonded in a 2-coordinate geometry to one S(1), one S(2), one S(6), and one S(8) atom. In the fourth Ag site, Ag(4) is bonded in a 2-coordinate geometry to two equivalent S(2) and two equivalent S(7) atoms. There are eight inequivalent S sites. In the first S site, S(1) is bonded to one Y(1), one Y(3), one Y(4), one Ag(1), and one Ag(3) atom to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(5)Y3Ag2 square pyramid,  a cornercorner with one S(7)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid,  an edgeedge with one S(7)Y3Ag2 square pyramid, and  an edgeedge with one S(4)Y3Ag trigonal pyramid. In the second S site, S(2) is bonded in a 6-coordinate geometry to one Y(1), two equivalent Y(4), one Ag(3), and two equivalent Ag(4) atoms. In the third S site, S(3) is bonded in a 6-coordinate geometry to one Y(3), two equivalent Y(2), one Ag(1), and two equivalent Ag(2) atoms. In the fourth S site, S(4) is bonded to one Y(1), one Y(2), one Y(3), and one Ag(1) atom to form a mixture of distorted corner and edge-sharing SY3Ag trigonal pyramids. In the fifth S site, S(5) is bonded to one Y(1), two equivalent Y(2), and two equivalent Ag(2) atoms to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(1)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid, edges with two equivalent S(5)Y3Ag2 square pyramids, and  an edgeedge with one S(4)Y3Ag trigonal pyramid. In the sixth S site, S(6) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Y(2), one Y(3), one Ag(1), and one Ag(3) atom. In the seventh S site, S(7) is bonded to one Y(3), two equivalent Y(4), and two equivalent Ag(4) atoms to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(1)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid,  an edgeedge with one S(1)Y3Ag2 square pyramid, and edges with two equivalent S(7)Y3Ag2 square pyramids. In the eighth S site, S(8) is bonded in a 4-coordinate geometry to one Y(1), one Y(3), one Y(4), and one Ag(3) atom. is represented by the CIF card [CIF]
data_YAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.661
_cell_length_b   7.668
_cell_length_c   12.854
_cell_angle_alpha   89.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   755.041
_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
  Y  Y0  1  0.274  0.503  0.253  1.0
  Y  Y1  1  0.774  0.497  0.747  1.0
  Y  Y2  1  0.027  0.246  0.505  1.0
  Y  Y3  1  0.527  0.754  0.495  1.0
  Y  Y4  1  0.283  0.996  0.753  1.0
  Y  Y5  1  0.783  0.004  0.247  1.0
  Y  Y6  1  0.529  0.253  0.003  1.0
  Y  Y7  1  0.029  0.747  0.997  1.0
  Ag  Ag8  1  0.280  0.997  0.295  1.0
  Ag  Ag9  1  0.780  0.003  0.705  1.0
  Ag  Ag10  1  0.530  0.254  0.538  1.0
  Ag  Ag11  1  0.030  0.746  0.462  1.0
  Ag  Ag12  1  0.781  0.496  0.194  1.0
  Ag  Ag13  1  0.281  0.504  0.806  1.0
  Ag  Ag14  1  0.029  0.245  0.035  1.0
  Ag  Ag15  1  0.529  0.755  0.965  1.0
  S  S16  1  0.551  0.274  0.219  1.0
  S  S17  1  0.051  0.726  0.781  1.0
  S  S18  1  0.253  0.475  0.038  1.0
  S  S19  1  0.753  0.525  0.962  1.0
  S  S20  1  0.304  0.026  0.538  1.0
  S  S21  1  0.804  0.974  0.462  1.0
  S  S22  1  0.055  0.226  0.290  1.0
  S  S23  1  0.555  0.774  0.710  1.0
  S  S24  1  0.258  0.520  0.469  1.0
  S  S25  1  0.758  0.480  0.531  1.0
  S  S26  1  0.008  0.227  0.721  1.0
  S  S27  1  0.508  0.773  0.279  1.0
  S  S28  1  0.800  0.021  0.031  1.0
  S  S29  1  0.300  0.979  0.969  1.0
  S  S30  1  0.004  0.727  0.211  1.0
  S  S31  1  0.504  0.273  0.789  1.0
[/CIF]
.
The material structure described by YAgS2 crystallizes in the monoclinic P2_1 space group. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one S(1), one S(2), one S(4), one S(5), one S(6), and one S(8) atom to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 18-25°. In the second Y site, Y(2) is bonded to one S(4), one S(6), two equivalent S(3), and two equivalent S(5) atoms to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 19-24°. In the third Y site, Y(3) is bonded to one S(1), one S(3), one S(4), one S(6), one S(7), and one S(8) atom to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 18-25°. In the fourth Y site, Y(4) is bonded to one S(1), one S(8), two equivalent S(2), and two equivalent S(7) atoms to form a mixture of corner and edge-sharing YS6 octahedra. The corner-sharing octahedral tilt angles range from 19-23°. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 2-coordinate geometry to one S(1), one S(3), one S(4), and one S(6) atom. In the second Ag site, Ag(2) is bonded in a 2-coordinate geometry to two equivalent S(3) and two equivalent S(5) atoms. In the third Ag site, Ag(3) is bonded in a 2-coordinate geometry to one S(1), one S(2), one S(6), and one S(8) atom. In the fourth Ag site, Ag(4) is bonded in a 2-coordinate geometry to two equivalent S(2) and two equivalent S(7) atoms. There are eight inequivalent S sites. In the first S site, S(1) is bonded to one Y(1), one Y(3), one Y(4), one Ag(1), and one Ag(3) atom to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(5)Y3Ag2 square pyramid,  a cornercorner with one S(7)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid,  an edgeedge with one S(7)Y3Ag2 square pyramid, and  an edgeedge with one S(4)Y3Ag trigonal pyramid. In the second S site, S(2) is bonded in a 6-coordinate geometry to one Y(1), two equivalent Y(4), one Ag(3), and two equivalent Ag(4) atoms. In the third S site, S(3) is bonded in a 6-coordinate geometry to one Y(3), two equivalent Y(2), one Ag(1), and two equivalent Ag(2) atoms. In the fourth S site, S(4) is bonded to one Y(1), one Y(2), one Y(3), and one Ag(1) atom to form a mixture of distorted corner and edge-sharing SY3Ag trigonal pyramids. In the fifth S site, S(5) is bonded to one Y(1), two equivalent Y(2), and two equivalent Ag(2) atoms to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(1)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid, edges with two equivalent S(5)Y3Ag2 square pyramids, and  an edgeedge with one S(4)Y3Ag trigonal pyramid. In the sixth S site, S(6) is bonded in a distorted rectangular see-saw-like geometry to one Y(1), one Y(2), one Y(3), one Ag(1), and one Ag(3) atom. In the seventh S site, S(7) is bonded to one Y(3), two equivalent Y(4), and two equivalent Ag(4) atoms to form distorted SY3Ag2 square pyramids that share  a cornercorner with one S(1)Y3Ag2 square pyramid,  a cornercorner with one S(4)Y3Ag trigonal pyramid,  an edgeedge with one S(1)Y3Ag2 square pyramid, and edges with two equivalent S(7)Y3Ag2 square pyramids. In the eighth S site, S(8) is bonded in a 4-coordinate geometry to one Y(1), one Y(3), one Y(4), and one Ag(3) atom. is represented by the CIF card [CIF]
data_YAgS2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.661
_cell_length_b   7.668
_cell_length_c   12.854
_cell_angle_alpha   89.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   755.041
_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
  Y  Y0  1  0.274  0.503  0.253  1.0
  Y  Y1  1  0.774  0.497  0.747  1.0
  Y  Y2  1  0.027  0.246  0.505  1.0
  Y  Y3  1  0.527  0.754  0.495  1.0
  Y  Y4  1  0.283  0.996  0.753  1.0
  Y  Y5  1  0.783  0.004  0.247  1.0
  Y  Y6  1  0.529  0.253  0.003  1.0
  Y  Y7  1  0.029  0.747  0.997  1.0
  Ag  Ag8  1  0.280  0.997  0.295  1.0
  Ag  Ag9  1  0.780  0.003  0.705  1.0
  Ag  Ag10  1  0.530  0.254  0.538  1.0
  Ag  Ag11  1  0.030  0.746  0.462  1.0
  Ag  Ag12  1  0.781  0.496  0.194  1.0
  Ag  Ag13  1  0.281  0.504  0.806  1.0
  Ag  Ag14  1  0.029  0.245  0.035  1.0
  Ag  Ag15  1  0.529  0.755  0.965  1.0
  S  S16  1  0.551  0.274  0.219  1.0
  S  S17  1  0.051  0.726  0.781  1.0
  S  S18  1  0.253  0.475  0.038  1.0
  S  S19  1  0.753  0.525  0.962  1.0
  S  S20  1  0.304  0.026  0.538  1.0
  S  S21  1  0.804  0.974  0.462  1.0
  S  S22  1  0.055  0.226  0.290  1.0
  S  S23  1  0.555  0.774  0.710  1.0
  S  S24  1  0.258  0.520  0.469  1.0
  S  S25  1  0.758  0.480  0.531  1.0
  S  S26  1  0.008  0.227  0.721  1.0
  S  S27  1  0.508  0.773  0.279  1.0
  S  S28  1  0.800  0.021  0.031  1.0
  S  S29  1  0.300  0.979  0.969  1.0
  S  S30  1  0.004  0.727  0.211  1.0
  S  S31  1  0.504  0.273  0.789  1.0
[/CIF]
.