The structure described by As2P2S7 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four As2P2S7 clusters. There are two inequivalent As sites. In the first As site, As(1) is bonded in a distorted water-like geometry to one S(2) and one S(3) atom. In the second As site, As(2) is bonded in a distorted water-like geometry to one S(4) and one S(5) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one S(1), one S(2), one S(4), and one S(6) atom to form corner-sharing PS4 tetrahedra. In the second P site, P(2) is bonded to one S(1), one S(3), one S(5), and one S(7) atom to form corner-sharing PS4 tetrahedra. There are seven inequivalent S sites. In the first S site, S(5) is bonded in a water-like geometry to one As(2) and one P(2) atom. In the second S site, S(6) is bonded in a single-bond geometry to one P(1) atom. In the third S site, S(7) is bonded in a single-bond geometry to one P(2) atom. In the fourth S site, S(1) is bonded in a water-like geometry to one P(1) and one P(2) atom. In the fifth S site, S(2) is bonded in a water-like geometry to one As(1) and one P(1) atom. In the sixth S site, S(3) is bonded in a water-like geometry to one As(1) and one P(2) atom. In the seventh S site, S(4) is bonded in a water-like geometry to one As(2) and one P(1) atom. is represented by the CIF card [CIF]
data_As2P2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.438
_cell_length_b   11.511
_cell_length_c   12.196
_cell_angle_alpha   85.104
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1180.276
_cell_formula_units_Z   4
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
  As  As0  1  0.114  0.675  0.663  1.0
  As  As1  1  0.614  0.825  0.337  1.0
  As  As2  1  0.886  0.325  0.337  1.0
  As  As3  1  0.386  0.175  0.663  1.0
  As  As4  1  0.919  0.641  0.824  1.0
  As  As5  1  0.419  0.859  0.176  1.0
  As  As6  1  0.081  0.359  0.176  1.0
  As  As7  1  0.581  0.141  0.824  1.0
  P  P8  1  0.146  0.883  0.843  1.0
  P  P9  1  0.646  0.617  0.157  1.0
  P  P10  1  0.854  0.117  0.157  1.0
  P  P11  1  0.354  0.383  0.843  1.0
  P  P12  1  0.830  0.887  0.658  1.0
  P  P13  1  0.330  0.613  0.342  1.0
  P  P14  1  0.170  0.113  0.342  1.0
  P  P15  1  0.670  0.387  0.658  1.0
  S  S16  1  0.980  0.989  0.750  1.0
  S  S17  1  0.480  0.511  0.250  1.0
  S  S18  1  0.020  0.011  0.250  1.0
  S  S19  1  0.520  0.489  0.750  1.0
  S  S20  1  0.286  0.798  0.736  1.0
  S  S21  1  0.786  0.702  0.264  1.0
  S  S22  1  0.714  0.202  0.264  1.0
  S  S23  1  0.214  0.298  0.736  1.0
  S  S24  1  0.969  0.800  0.550  1.0
  S  S25  1  0.469  0.700  0.450  1.0
  S  S26  1  0.031  0.200  0.450  1.0
  S  S27  1  0.531  0.300  0.550  1.0
  S  S28  1  0.031  0.757  0.944  1.0
  S  S29  1  0.531  0.743  0.056  1.0
  S  S30  1  0.969  0.243  0.056  1.0
  S  S31  1  0.469  0.257  0.944  1.0
  S  S32  1  0.719  0.759  0.760  1.0
  S  S33  1  0.219  0.741  0.240  1.0
  S  S34  1  0.281  0.241  0.240  1.0
  S  S35  1  0.781  0.259  0.760  1.0
  S  S36  1  0.265  0.992  0.924  1.0
  S  S37  1  0.765  0.508  0.076  1.0
  S  S38  1  0.735  0.008  0.076  1.0
  S  S39  1  0.235  0.492  0.924  1.0
  S  S40  1  0.681  0.992  0.582  1.0
  S  S41  1  0.181  0.508  0.418  1.0
  S  S42  1  0.319  0.008  0.418  1.0
  S  S43  1  0.819  0.492  0.582  1.0
[/CIF]
.
The structure described by As2P2S7 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four As2P2S7 clusters. There are two inequivalent As sites. In the first As site, As(1) is bonded in a distorted water-like geometry to one S(2) and one S(3) atom. In the second As site, As(2) is bonded in a distorted water-like geometry to one S(4) and one S(5) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one S(1), one S(2), one S(4), and one S(6) atom to form corner-sharing PS4 tetrahedra. In the second P site, P(2) is bonded to one S(1), one S(3), one S(5), and one S(7) atom to form corner-sharing PS4 tetrahedra. There are seven inequivalent S sites. In the first S site, S(5) is bonded in a water-like geometry to one As(2) and one P(2) atom. In the second S site, S(6) is bonded in a single-bond geometry to one P(1) atom. In the third S site, S(7) is bonded in a single-bond geometry to one P(2) atom. In the fourth S site, S(1) is bonded in a water-like geometry to one P(1) and one P(2) atom. In the fifth S site, S(2) is bonded in a water-like geometry to one As(1) and one P(1) atom. In the sixth S site, S(3) is bonded in a water-like geometry to one As(1) and one P(2) atom. In the seventh S site, S(4) is bonded in a water-like geometry to one As(2) and one P(1) atom. is represented by the CIF card [CIF]
data_As2P2S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.438
_cell_length_b   11.511
_cell_length_c   12.196
_cell_angle_alpha   85.104
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1180.276
_cell_formula_units_Z   4
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
  As  As0  1  0.114  0.675  0.663  1.0
  As  As1  1  0.614  0.825  0.337  1.0
  As  As2  1  0.886  0.325  0.337  1.0
  As  As3  1  0.386  0.175  0.663  1.0
  As  As4  1  0.919  0.641  0.824  1.0
  As  As5  1  0.419  0.859  0.176  1.0
  As  As6  1  0.081  0.359  0.176  1.0
  As  As7  1  0.581  0.141  0.824  1.0
  P  P8  1  0.146  0.883  0.843  1.0
  P  P9  1  0.646  0.617  0.157  1.0
  P  P10  1  0.854  0.117  0.157  1.0
  P  P11  1  0.354  0.383  0.843  1.0
  P  P12  1  0.830  0.887  0.658  1.0
  P  P13  1  0.330  0.613  0.342  1.0
  P  P14  1  0.170  0.113  0.342  1.0
  P  P15  1  0.670  0.387  0.658  1.0
  S  S16  1  0.980  0.989  0.750  1.0
  S  S17  1  0.480  0.511  0.250  1.0
  S  S18  1  0.020  0.011  0.250  1.0
  S  S19  1  0.520  0.489  0.750  1.0
  S  S20  1  0.286  0.798  0.736  1.0
  S  S21  1  0.786  0.702  0.264  1.0
  S  S22  1  0.714  0.202  0.264  1.0
  S  S23  1  0.214  0.298  0.736  1.0
  S  S24  1  0.969  0.800  0.550  1.0
  S  S25  1  0.469  0.700  0.450  1.0
  S  S26  1  0.031  0.200  0.450  1.0
  S  S27  1  0.531  0.300  0.550  1.0
  S  S28  1  0.031  0.757  0.944  1.0
  S  S29  1  0.531  0.743  0.056  1.0
  S  S30  1  0.969  0.243  0.056  1.0
  S  S31  1  0.469  0.257  0.944  1.0
  S  S32  1  0.719  0.759  0.760  1.0
  S  S33  1  0.219  0.741  0.240  1.0
  S  S34  1  0.281  0.241  0.240  1.0
  S  S35  1  0.781  0.259  0.760  1.0
  S  S36  1  0.265  0.992  0.924  1.0
  S  S37  1  0.765  0.508  0.076  1.0
  S  S38  1  0.735  0.008  0.076  1.0
  S  S39  1  0.235  0.492  0.924  1.0
  S  S40  1  0.681  0.992  0.582  1.0
  S  S41  1  0.181  0.508  0.418  1.0
  S  S42  1  0.319  0.008  0.418  1.0
  S  S43  1  0.819  0.492  0.582  1.0
[/CIF]
.