The material described by Si2H2S3 is Indium structured and crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of two 2,4,6,8,9,10-hexathia-1,3,5,7-tetrasilatricyclo[3.3.1.13,7]decane molecules. Si(1) is bonded to one H(1), one S(1), and two equivalent S(2) atoms to form corner-sharing SiHS3 tetrahedra. H(1) is bonded in a single-bond geometry to one Si(1) atom. There are two inequivalent S sites. In the first S site, S(2) is bonded in a water-like geometry to two equivalent Si(1) atoms. In the second S site, S(1) is bonded in a water-like geometry to two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si2H2S3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.893
_cell_length_b   7.893
_cell_length_c   8.869
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   552.557
_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
  Si  Si0  1  0.434  0.701  0.632  1.0
  Si  Si1  1  0.566  0.299  0.632  1.0
  Si  Si2  1  0.799  0.066  0.132  1.0
  Si  Si3  1  0.299  0.434  0.368  1.0
  Si  Si4  1  0.201  0.934  0.132  1.0
  Si  Si5  1  0.934  0.799  0.868  1.0
  Si  Si6  1  0.066  0.201  0.868  1.0
  Si  Si7  1  0.701  0.566  0.368  1.0
  H  H8  1  0.387  0.846  0.728  1.0
  H  H9  1  0.613  0.154  0.728  1.0
  H  H10  1  0.654  0.113  0.228  1.0
  H  H11  1  0.154  0.387  0.272  1.0
  H  H12  1  0.846  0.613  0.272  1.0
  H  H13  1  0.113  0.346  0.772  1.0
  H  H14  1  0.887  0.654  0.772  1.0
  H  H15  1  0.346  0.887  0.228  1.0
  S  S16  1  0.500  0.500  0.783  1.0
  S  S17  1  0.500  0.500  0.217  1.0
  S  S18  1  0.000  0.000  0.717  1.0
  S  S19  1  0.000  0.000  0.283  1.0
  S  S20  1  0.643  0.786  0.499  1.0
  S  S21  1  0.357  0.214  0.499  1.0
  S  S22  1  0.714  0.857  0.999  1.0
  S  S23  1  0.214  0.643  0.501  1.0
  S  S24  1  0.786  0.357  0.501  1.0
  S  S25  1  0.857  0.286  0.001  1.0
  S  S26  1  0.143  0.714  0.001  1.0
  S  S27  1  0.286  0.143  0.999  1.0
[/CIF]
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The material described by Si2H2S3 is Indium structured and crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of two 2,4,6,8,9,10-hexathia-1,3,5,7-tetrasilatricyclo[3.3.1.13,7]decane molecules. Si(1) is bonded to one H(1), one S(1), and two equivalent S(2) atoms to form corner-sharing SiHS3 tetrahedra. H(1) is bonded in a single-bond geometry to one Si(1) atom. There are two inequivalent S sites. In the first S site, S(2) is bonded in a water-like geometry to two equivalent Si(1) atoms. In the second S site, S(1) is bonded in a water-like geometry to two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si2H2S3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.893
_cell_length_b   7.893
_cell_length_c   8.869
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   552.557
_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
  Si  Si0  1  0.434  0.701  0.632  1.0
  Si  Si1  1  0.566  0.299  0.632  1.0
  Si  Si2  1  0.799  0.066  0.132  1.0
  Si  Si3  1  0.299  0.434  0.368  1.0
  Si  Si4  1  0.201  0.934  0.132  1.0
  Si  Si5  1  0.934  0.799  0.868  1.0
  Si  Si6  1  0.066  0.201  0.868  1.0
  Si  Si7  1  0.701  0.566  0.368  1.0
  H  H8  1  0.387  0.846  0.728  1.0
  H  H9  1  0.613  0.154  0.728  1.0
  H  H10  1  0.654  0.113  0.228  1.0
  H  H11  1  0.154  0.387  0.272  1.0
  H  H12  1  0.846  0.613  0.272  1.0
  H  H13  1  0.113  0.346  0.772  1.0
  H  H14  1  0.887  0.654  0.772  1.0
  H  H15  1  0.346  0.887  0.228  1.0
  S  S16  1  0.500  0.500  0.783  1.0
  S  S17  1  0.500  0.500  0.217  1.0
  S  S18  1  0.000  0.000  0.717  1.0
  S  S19  1  0.000  0.000  0.283  1.0
  S  S20  1  0.643  0.786  0.499  1.0
  S  S21  1  0.357  0.214  0.499  1.0
  S  S22  1  0.714  0.857  0.999  1.0
  S  S23  1  0.214  0.643  0.501  1.0
  S  S24  1  0.786  0.357  0.501  1.0
  S  S25  1  0.857  0.286  0.001  1.0
  S  S26  1  0.143  0.714  0.001  1.0
  S  S27  1  0.286  0.143  0.999  1.0
[/CIF]
.