The compound described by Si2N2O crystallizes in the orthorhombic Cmc2_1 space group. Si(1) is bonded to three equivalent N(1) and one O(1) atom to form corner-sharing SiN3O tetrahedra. N(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms. O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si2N2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.859
_cell_length_b   5.228
_cell_length_c   5.228
_cell_angle_alpha   116.472
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.866
_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  0.729  0.027  0.672  1.0
  Si  Si1  1  0.229  0.973  0.328  1.0
  Si  Si2  1  0.229  0.328  0.973  1.0
  Si  Si3  1  0.729  0.672  0.027  1.0
  N  N4  1  0.385  0.096  0.657  1.0
  N  N5  1  0.885  0.904  0.343  1.0
  N  N6  1  0.885  0.343  0.904  1.0
  N  N7  1  0.385  0.657  0.096  1.0
  O  O8  1  0.779  0.791  0.791  1.0
  O  O9  1  0.279  0.209  0.209  1.0
[/CIF]
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The compound described by Si2N2O crystallizes in the orthorhombic Cmc2_1 space group. Si(1) is bonded to three equivalent N(1) and one O(1) atom to form corner-sharing SiN3O tetrahedra. N(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms. O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Si2N2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.859
_cell_length_b   5.228
_cell_length_c   5.228
_cell_angle_alpha   116.472
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.866
_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  0.729  0.027  0.672  1.0
  Si  Si1  1  0.229  0.973  0.328  1.0
  Si  Si2  1  0.229  0.328  0.973  1.0
  Si  Si3  1  0.729  0.672  0.027  1.0
  N  N4  1  0.385  0.096  0.657  1.0
  N  N5  1  0.885  0.904  0.343  1.0
  N  N6  1  0.885  0.343  0.904  1.0
  N  N7  1  0.385  0.657  0.096  1.0
  O  O8  1  0.779  0.791  0.791  1.0
  O  O9  1  0.279  0.209  0.209  1.0
[/CIF]
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