The crystal structure described by Si3N2 is alpha Po structured and crystallizes in the cubic Pm-3m space group. The structure is zero-dimensional and consists of one Si3N2 cluster. Si(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. N(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si3N2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.700
_cell_length_b   6.700
_cell_length_c   6.700
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   300.809
_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  0.322  0.322  0.000  1.0
  Si  Si1  1  0.678  0.678  0.000  1.0
  Si  Si2  1  0.678  0.322  0.000  1.0
  Si  Si3  1  0.322  0.678  0.000  1.0
  Si  Si4  1  0.000  0.322  0.678  1.0
  Si  Si5  1  0.000  0.678  0.322  1.0
  Si  Si6  1  0.000  0.678  0.678  1.0
  Si  Si7  1  0.000  0.322  0.322  1.0
  Si  Si8  1  0.322  0.000  0.678  1.0
  Si  Si9  1  0.678  0.000  0.322  1.0
  Si  Si10  1  0.322  0.000  0.322  1.0
  Si  Si11  1  0.678  0.000  0.678  1.0
  N  N12  1  0.221  0.221  0.779  1.0
  N  N13  1  0.779  0.779  0.779  1.0
  N  N14  1  0.779  0.221  0.221  1.0
  N  N15  1  0.221  0.779  0.221  1.0
  N  N16  1  0.779  0.779  0.221  1.0
  N  N17  1  0.221  0.221  0.221  1.0
  N  N18  1  0.221  0.779  0.779  1.0
  N  N19  1  0.779  0.221  0.779  1.0
[/CIF]
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The crystal structure described by Si3N2 is alpha Po structured and crystallizes in the cubic Pm-3m space group. The structure is zero-dimensional and consists of one Si3N2 cluster. Si(1) is bonded in a bent 120 degrees geometry to two equivalent N(1) atoms. N(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_Si3N2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.700
_cell_length_b   6.700
_cell_length_c   6.700
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   300.809
_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  0.322  0.322  0.000  1.0
  Si  Si1  1  0.678  0.678  0.000  1.0
  Si  Si2  1  0.678  0.322  0.000  1.0
  Si  Si3  1  0.322  0.678  0.000  1.0
  Si  Si4  1  0.000  0.322  0.678  1.0
  Si  Si5  1  0.000  0.678  0.322  1.0
  Si  Si6  1  0.000  0.678  0.678  1.0
  Si  Si7  1  0.000  0.322  0.322  1.0
  Si  Si8  1  0.322  0.000  0.678  1.0
  Si  Si9  1  0.678  0.000  0.322  1.0
  Si  Si10  1  0.322  0.000  0.322  1.0
  Si  Si11  1  0.678  0.000  0.678  1.0
  N  N12  1  0.221  0.221  0.779  1.0
  N  N13  1  0.779  0.779  0.779  1.0
  N  N14  1  0.779  0.221  0.221  1.0
  N  N15  1  0.221  0.779  0.221  1.0
  N  N16  1  0.779  0.779  0.221  1.0
  N  N17  1  0.221  0.221  0.221  1.0
  N  N18  1  0.221  0.779  0.779  1.0
  N  N19  1  0.779  0.221  0.779  1.0
[/CIF]
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