The crystal structure described by SiC2N4 crystallizes in the cubic Pn-3m space group. Si(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded in a linear geometry to one Si(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si(CN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.684
_cell_length_b   6.684
_cell_length_c   6.684
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   298.664
_cell_formula_units_Z   2
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  0.500  0.500  1.0
  Si  Si1  1  0.000  0.000  0.000  1.0
  C  C2  1  0.750  0.250  0.250  1.0
  C  C3  1  0.250  0.250  0.750  1.0
  C  C4  1  0.750  0.750  0.750  1.0
  C  C5  1  0.250  0.750  0.250  1.0
  N  N6  1  0.146  0.854  0.146  1.0
  N  N7  1  0.646  0.646  0.646  1.0
  N  N8  1  0.854  0.854  0.854  1.0
  N  N9  1  0.354  0.646  0.354  1.0
  N  N10  1  0.354  0.354  0.646  1.0
  N  N11  1  0.646  0.354  0.354  1.0
  N  N12  1  0.146  0.146  0.854  1.0
  N  N13  1  0.854  0.146  0.146  1.0
[/CIF]
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The crystal structure described by SiC2N4 crystallizes in the cubic Pn-3m space group. Si(1) is bonded in a tetrahedral geometry to four equivalent N(1) atoms. C(1) is bonded in a linear geometry to two equivalent N(1) atoms. N(1) is bonded in a linear geometry to one Si(1) and one C(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si(CN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.684
_cell_length_b   6.684
_cell_length_c   6.684
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   298.664
_cell_formula_units_Z   2
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  0.500  0.500  1.0
  Si  Si1  1  0.000  0.000  0.000  1.0
  C  C2  1  0.750  0.250  0.250  1.0
  C  C3  1  0.250  0.250  0.750  1.0
  C  C4  1  0.750  0.750  0.750  1.0
  C  C5  1  0.250  0.750  0.250  1.0
  N  N6  1  0.146  0.854  0.146  1.0
  N  N7  1  0.646  0.646  0.646  1.0
  N  N8  1  0.854  0.854  0.854  1.0
  N  N9  1  0.354  0.646  0.354  1.0
  N  N10  1  0.354  0.354  0.646  1.0
  N  N11  1  0.646  0.354  0.354  1.0
  N  N12  1  0.146  0.146  0.854  1.0
  N  N13  1  0.854  0.146  0.146  1.0
[/CIF]
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