The compound described by Ba2Ag8S7 crystallizes in the orthorhombic Pmn2_1 space group. Ba(1) is bonded in a 8-coordinate geometry to one S(1), two equivalent S(2), two equivalent S(3), and three equivalent S(4) atoms. There are five inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted trigonal planar geometry to one S(5) and two equivalent S(1) atoms. In the second Ag site, Ag(2) is bonded in a distorted trigonal planar geometry to one S(3), one S(5), and two equivalent S(4) atoms. In the third Ag site, Ag(3) is bonded in a 2-coordinate geometry to one S(4) and three equivalent S(1) atoms. In the fourth Ag site, Ag(4) is bonded in a linear geometry to two equivalent S(1) atoms. In the fifth Ag site, Ag(5) is bonded in a 3-coordinate geometry to one S(3) and two equivalent S(5) atoms. There are five inequivalent S sites. In the first S site, S(5) is bonded in a 6-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), and two equivalent Ag(5) atoms. In the second S site, S(1) is bonded in a 7-coordinate geometry to one Ba(1), one Ag(4), two equivalent Ag(1), and three equivalent Ag(3) atoms. In the third S site, S(2) is bonded in a 5-coordinate geometry to four equivalent Ba(1) and one S(3) atom. In the fourth S site, S(3) is bonded in a 8-coordinate geometry to four equivalent Ba(1), one Ag(5), two equivalent Ag(2), and one S(2) atom. In the fifth S site, S(4) is bonded to three equivalent Ba(1), one Ag(3), and two equivalent Ag(2) atoms to form distorted edge-sharing SBa3Ag3 octahedra. is represented by the CIF file [CIF]
data_Ba2Ag8S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.448
_cell_length_b   10.883
_cell_length_c   15.882
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   768.883
_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
  Ba  Ba0  1  0.261  0.880  0.364  1.0
  Ba  Ba1  1  0.261  0.880  0.636  1.0
  Ba  Ba2  1  0.761  0.120  0.136  1.0
  Ba  Ba3  1  0.761  0.120  0.864  1.0
  Ag  Ag4  1  0.756  0.486  0.393  1.0
  Ag  Ag5  1  0.756  0.486  0.607  1.0
  Ag  Ag6  1  0.256  0.514  0.107  1.0
  Ag  Ag7  1  0.256  0.514  0.893  1.0
  Ag  Ag8  1  0.766  0.200  0.355  1.0
  Ag  Ag9  1  0.766  0.200  0.645  1.0
  Ag  Ag10  1  0.266  0.800  0.145  1.0
  Ag  Ag11  1  0.266  0.800  0.855  1.0
  Ag  Ag12  1  0.257  0.370  0.291  1.0
  Ag  Ag13  1  0.257  0.370  0.709  1.0
  Ag  Ag14  1  0.757  0.630  0.209  1.0
  Ag  Ag15  1  0.757  0.630  0.791  1.0
  Ag  Ag16  1  0.249  0.579  0.500  1.0
  Ag  Ag17  1  0.749  0.421  0.000  1.0
  Ag  Ag18  1  0.153  0.217  0.500  1.0
  Ag  Ag19  1  0.653  0.783  0.000  1.0
  S  S20  1  0.247  0.580  0.347  1.0
  S  S21  1  0.247  0.580  0.653  1.0
  S  S22  1  0.747  0.420  0.153  1.0
  S  S23  1  0.747  0.420  0.847  1.0
  S  S24  1  0.766  0.799  0.500  1.0
  S  S25  1  0.266  0.201  0.000  1.0
  S  S26  1  0.760  0.996  0.500  1.0
  S  S27  1  0.260  0.004  0.000  1.0
  S  S28  1  0.259  0.147  0.280  1.0
  S  S29  1  0.259  0.147  0.720  1.0
  S  S30  1  0.759  0.853  0.220  1.0
  S  S31  1  0.759  0.853  0.780  1.0
  S  S32  1  0.647  0.308  0.500  1.0
  S  S33  1  0.147  0.692  0.000  1.0
[/CIF]
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The compound described by Ba2Ag8S7 crystallizes in the orthorhombic Pmn2_1 space group. Ba(1) is bonded in a 8-coordinate geometry to one S(1), two equivalent S(2), two equivalent S(3), and three equivalent S(4) atoms. There are five inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted trigonal planar geometry to one S(5) and two equivalent S(1) atoms. In the second Ag site, Ag(2) is bonded in a distorted trigonal planar geometry to one S(3), one S(5), and two equivalent S(4) atoms. In the third Ag site, Ag(3) is bonded in a 2-coordinate geometry to one S(4) and three equivalent S(1) atoms. In the fourth Ag site, Ag(4) is bonded in a linear geometry to two equivalent S(1) atoms. In the fifth Ag site, Ag(5) is bonded in a 3-coordinate geometry to one S(3) and two equivalent S(5) atoms. There are five inequivalent S sites. In the first S site, S(5) is bonded in a 6-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), and two equivalent Ag(5) atoms. In the second S site, S(1) is bonded in a 7-coordinate geometry to one Ba(1), one Ag(4), two equivalent Ag(1), and three equivalent Ag(3) atoms. In the third S site, S(2) is bonded in a 5-coordinate geometry to four equivalent Ba(1) and one S(3) atom. In the fourth S site, S(3) is bonded in a 8-coordinate geometry to four equivalent Ba(1), one Ag(5), two equivalent Ag(2), and one S(2) atom. In the fifth S site, S(4) is bonded to three equivalent Ba(1), one Ag(3), and two equivalent Ag(2) atoms to form distorted edge-sharing SBa3Ag3 octahedra. is represented by the CIF file [CIF]
data_Ba2Ag8S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.448
_cell_length_b   10.883
_cell_length_c   15.882
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   768.883
_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
  Ba  Ba0  1  0.261  0.880  0.364  1.0
  Ba  Ba1  1  0.261  0.880  0.636  1.0
  Ba  Ba2  1  0.761  0.120  0.136  1.0
  Ba  Ba3  1  0.761  0.120  0.864  1.0
  Ag  Ag4  1  0.756  0.486  0.393  1.0
  Ag  Ag5  1  0.756  0.486  0.607  1.0
  Ag  Ag6  1  0.256  0.514  0.107  1.0
  Ag  Ag7  1  0.256  0.514  0.893  1.0
  Ag  Ag8  1  0.766  0.200  0.355  1.0
  Ag  Ag9  1  0.766  0.200  0.645  1.0
  Ag  Ag10  1  0.266  0.800  0.145  1.0
  Ag  Ag11  1  0.266  0.800  0.855  1.0
  Ag  Ag12  1  0.257  0.370  0.291  1.0
  Ag  Ag13  1  0.257  0.370  0.709  1.0
  Ag  Ag14  1  0.757  0.630  0.209  1.0
  Ag  Ag15  1  0.757  0.630  0.791  1.0
  Ag  Ag16  1  0.249  0.579  0.500  1.0
  Ag  Ag17  1  0.749  0.421  0.000  1.0
  Ag  Ag18  1  0.153  0.217  0.500  1.0
  Ag  Ag19  1  0.653  0.783  0.000  1.0
  S  S20  1  0.247  0.580  0.347  1.0
  S  S21  1  0.247  0.580  0.653  1.0
  S  S22  1  0.747  0.420  0.153  1.0
  S  S23  1  0.747  0.420  0.847  1.0
  S  S24  1  0.766  0.799  0.500  1.0
  S  S25  1  0.266  0.201  0.000  1.0
  S  S26  1  0.760  0.996  0.500  1.0
  S  S27  1  0.260  0.004  0.000  1.0
  S  S28  1  0.259  0.147  0.280  1.0
  S  S29  1  0.259  0.147  0.720  1.0
  S  S30  1  0.759  0.853  0.220  1.0
  S  S31  1  0.759  0.853  0.780  1.0
  S  S32  1  0.647  0.308  0.500  1.0
  S  S33  1  0.147  0.692  0.000  1.0
[/CIF]
.