The structure described by (Si3N2)8H2 is alpha carbon monoxide-like structured and crystallizes in the tetragonal P4mm space group. The structure is zero-dimensional and consists of one 1333-74-0 atom and one Si3N2 cluster. In the Si3N2 cluster, there are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. In the second Si site, Si(2) is bonded in a bent 120 degrees geometry to two equivalent N(2) atoms. In the third Si site, Si(3) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Si(3) and two equivalent Si(1) atoms. In the second N site, N(2) is bonded in a trigonal planar geometry to one Si(3) and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_Si12HN8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.710
_cell_length_b   6.710
_cell_length_c   6.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   301.470
_cell_formula_units_Z   1
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  0.500  0.178  0.179  1.0
  Si  Si1  1  0.500  0.822  0.823  1.0
  Si  Si2  1  0.500  0.822  0.179  1.0
  Si  Si3  1  0.500  0.178  0.823  1.0
  Si  Si4  1  0.822  0.500  0.179  1.0
  Si  Si5  1  0.178  0.500  0.823  1.0
  Si  Si6  1  0.822  0.500  0.823  1.0
  Si  Si7  1  0.178  0.500  0.179  1.0
  Si  Si8  1  0.822  0.178  0.501  1.0
  Si  Si9  1  0.178  0.822  0.501  1.0
  Si  Si10  1  0.178  0.178  0.501  1.0
  Si  Si11  1  0.822  0.822  0.501  1.0
  H  H12  1  0.500  0.500  0.557  1.0
  N  N13  1  0.722  0.278  0.279  1.0
  N  N14  1  0.725  0.725  0.725  1.0
  N  N15  1  0.278  0.722  0.279  1.0
  N  N16  1  0.275  0.275  0.725  1.0
  N  N17  1  0.275  0.725  0.725  1.0
  N  N18  1  0.278  0.278  0.279  1.0
  N  N19  1  0.725  0.275  0.725  1.0
  N  N20  1  0.722  0.722  0.279  1.0
[/CIF]
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The structure described by (Si3N2)8H2 is alpha carbon monoxide-like structured and crystallizes in the tetragonal P4mm space group. The structure is zero-dimensional and consists of one 1333-74-0 atom and one Si3N2 cluster. In the Si3N2 cluster, there are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. In the second Si site, Si(2) is bonded in a bent 120 degrees geometry to two equivalent N(2) atoms. In the third Si site, Si(3) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Si(3) and two equivalent Si(1) atoms. In the second N site, N(2) is bonded in a trigonal planar geometry to one Si(3) and two equivalent Si(2) atoms. is represented by the CIF card [CIF]
data_Si12HN8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.710
_cell_length_b   6.710
_cell_length_c   6.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   301.470
_cell_formula_units_Z   1
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  0.500  0.178  0.179  1.0
  Si  Si1  1  0.500  0.822  0.823  1.0
  Si  Si2  1  0.500  0.822  0.179  1.0
  Si  Si3  1  0.500  0.178  0.823  1.0
  Si  Si4  1  0.822  0.500  0.179  1.0
  Si  Si5  1  0.178  0.500  0.823  1.0
  Si  Si6  1  0.822  0.500  0.823  1.0
  Si  Si7  1  0.178  0.500  0.179  1.0
  Si  Si8  1  0.822  0.178  0.501  1.0
  Si  Si9  1  0.178  0.822  0.501  1.0
  Si  Si10  1  0.178  0.178  0.501  1.0
  Si  Si11  1  0.822  0.822  0.501  1.0
  H  H12  1  0.500  0.500  0.557  1.0
  N  N13  1  0.722  0.278  0.279  1.0
  N  N14  1  0.725  0.725  0.725  1.0
  N  N15  1  0.278  0.722  0.279  1.0
  N  N16  1  0.275  0.275  0.725  1.0
  N  N17  1  0.275  0.725  0.725  1.0
  N  N18  1  0.278  0.278  0.279  1.0
  N  N19  1  0.725  0.275  0.725  1.0
  N  N20  1  0.722  0.722  0.279  1.0
[/CIF]
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