The compound described by AsSe is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 2,4,6,8-tetraselena-1,3,5,7-tetrarsatricyclo[3.3.0.03,7]octane molecules. There are four inequivalent As sites. In the first As site, As(1) is bonded in a distorted L-shaped geometry to one As(4), one Se(1), and one Se(2) atom. In the second As site, As(2) is bonded in a distorted L-shaped geometry to one As(3), one Se(1), and one Se(3) atom. In the third As site, As(3) is bonded in a distorted L-shaped geometry to one As(2), one Se(2), and one Se(4) atom. In the fourth As site, As(4) is bonded in a distorted L-shaped geometry to one As(1), one Se(3), and one Se(4) atom. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a water-like geometry to one As(1) and one As(2) atom. In the second Se site, Se(2) is bonded in a water-like geometry to one As(1) and one As(3) atom. In the third Se site, Se(3) is bonded in a water-like geometry to one As(2) and one As(4) atom. In the fourth Se site, Se(4) is bonded in a water-like geometry to one As(3) and one As(4) atom. is represented by the CIF card [CIF]
data_AsSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.919
_cell_length_b   9.848
_cell_length_c   14.385
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   107.018
_symmetry_Int_Tables_number   1
_cell_volume   937.154
_cell_formula_units_Z   16
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  0.238  0.881  0.010  1.0
  As  As1  1  0.262  0.619  0.510  1.0
  As  As2  1  0.762  0.119  0.990  1.0
  As  As3  1  0.738  0.381  0.490  1.0
  As  As4  1  0.117  0.575  0.857  1.0
  As  As5  1  0.383  0.925  0.357  1.0
  As  As6  1  0.883  0.425  0.143  1.0
  As  As7  1  0.617  0.075  0.643  1.0
  As  As8  1  0.813  0.675  0.874  1.0
  As  As9  1  0.687  0.825  0.374  1.0
  As  As10  1  0.187  0.325  0.126  1.0
  As  As11  1  0.313  0.175  0.626  1.0
  As  As12  1  0.274  0.956  0.837  1.0
  As  As13  1  0.226  0.544  0.337  1.0
  As  As14  1  0.726  0.044  0.163  1.0
  As  As15  1  0.774  0.456  0.663  1.0
  Se  Se16  1  0.295  0.654  0.999  1.0
  Se  Se17  1  0.205  0.846  0.499  1.0
  Se  Se18  1  0.705  0.346  0.001  1.0
  Se  Se19  1  0.795  0.154  0.501  1.0
  Se  Se20  1  0.880  0.785  0.023  1.0
  Se  Se21  1  0.620  0.715  0.523  1.0
  Se  Se22  1  0.120  0.215  0.977  1.0
  Se  Se23  1  0.380  0.285  0.477  1.0
  Se  Se24  1  0.340  0.756  0.766  1.0
  Se  Se25  1  0.160  0.744  0.266  1.0
  Se  Se26  1  0.660  0.244  0.234  1.0
  Se  Se27  1  0.840  0.256  0.734  1.0
  Se  Se28  1  0.930  0.892  0.789  1.0
  Se  Se29  1  0.570  0.608  0.289  1.0
  Se  Se30  1  0.070  0.108  0.211  1.0
  Se  Se31  1  0.430  0.392  0.711  1.0
[/CIF]
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The compound described by AsSe is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 2,4,6,8-tetraselena-1,3,5,7-tetrarsatricyclo[3.3.0.03,7]octane molecules. There are four inequivalent As sites. In the first As site, As(1) is bonded in a distorted L-shaped geometry to one As(4), one Se(1), and one Se(2) atom. In the second As site, As(2) is bonded in a distorted L-shaped geometry to one As(3), one Se(1), and one Se(3) atom. In the third As site, As(3) is bonded in a distorted L-shaped geometry to one As(2), one Se(2), and one Se(4) atom. In the fourth As site, As(4) is bonded in a distorted L-shaped geometry to one As(1), one Se(3), and one Se(4) atom. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a water-like geometry to one As(1) and one As(2) atom. In the second Se site, Se(2) is bonded in a water-like geometry to one As(1) and one As(3) atom. In the third Se site, Se(3) is bonded in a water-like geometry to one As(2) and one As(4) atom. In the fourth Se site, Se(4) is bonded in a water-like geometry to one As(3) and one As(4) atom. is represented by the CIF card [CIF]
data_AsSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.919
_cell_length_b   9.848
_cell_length_c   14.385
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   107.018
_symmetry_Int_Tables_number   1
_cell_volume   937.154
_cell_formula_units_Z   16
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  0.238  0.881  0.010  1.0
  As  As1  1  0.262  0.619  0.510  1.0
  As  As2  1  0.762  0.119  0.990  1.0
  As  As3  1  0.738  0.381  0.490  1.0
  As  As4  1  0.117  0.575  0.857  1.0
  As  As5  1  0.383  0.925  0.357  1.0
  As  As6  1  0.883  0.425  0.143  1.0
  As  As7  1  0.617  0.075  0.643  1.0
  As  As8  1  0.813  0.675  0.874  1.0
  As  As9  1  0.687  0.825  0.374  1.0
  As  As10  1  0.187  0.325  0.126  1.0
  As  As11  1  0.313  0.175  0.626  1.0
  As  As12  1  0.274  0.956  0.837  1.0
  As  As13  1  0.226  0.544  0.337  1.0
  As  As14  1  0.726  0.044  0.163  1.0
  As  As15  1  0.774  0.456  0.663  1.0
  Se  Se16  1  0.295  0.654  0.999  1.0
  Se  Se17  1  0.205  0.846  0.499  1.0
  Se  Se18  1  0.705  0.346  0.001  1.0
  Se  Se19  1  0.795  0.154  0.501  1.0
  Se  Se20  1  0.880  0.785  0.023  1.0
  Se  Se21  1  0.620  0.715  0.523  1.0
  Se  Se22  1  0.120  0.215  0.977  1.0
  Se  Se23  1  0.380  0.285  0.477  1.0
  Se  Se24  1  0.340  0.756  0.766  1.0
  Se  Se25  1  0.160  0.744  0.266  1.0
  Se  Se26  1  0.660  0.244  0.234  1.0
  Se  Se27  1  0.840  0.256  0.734  1.0
  Se  Se28  1  0.930  0.892  0.789  1.0
  Se  Se29  1  0.570  0.608  0.289  1.0
  Se  Se30  1  0.070  0.108  0.211  1.0
  Se  Se31  1  0.430  0.392  0.711  1.0
[/CIF]
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