The structure described by BaSi2O2N2 crystallizes in the orthorhombic Pbcn space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent N(1) and eight equivalent O(1) atoms. 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 one Ba(1) and three equivalent Si(1) atoms. O(1) is bonded in a distorted single-bond geometry to four equivalent Ba(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_BaSi2(NO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.880
_cell_length_b   5.404
_cell_length_c   14.561
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   383.977
_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
  Ba  Ba0  1  0.750  0.754  0.000  1.0
  Ba  Ba1  1  0.250  0.746  0.500  1.0
  Ba  Ba2  1  0.250  0.246  0.000  1.0
  Ba  Ba3  1  0.750  0.254  0.500  1.0
  Si  Si4  1  0.301  0.660  0.800  1.0
  Si  Si5  1  0.301  0.160  0.700  1.0
  Si  Si6  1  0.801  0.340  0.800  1.0
  Si  Si7  1  0.199  0.160  0.300  1.0
  Si  Si8  1  0.699  0.340  0.200  1.0
  Si  Si9  1  0.699  0.840  0.300  1.0
  Si  Si10  1  0.199  0.660  0.200  1.0
  Si  Si11  1  0.801  0.840  0.700  1.0
  N  N12  1  0.154  0.369  0.778  1.0
  N  N13  1  0.154  0.869  0.722  1.0
  N  N14  1  0.654  0.131  0.722  1.0
  N  N15  1  0.346  0.369  0.222  1.0
  N  N16  1  0.846  0.131  0.278  1.0
  N  N17  1  0.846  0.631  0.222  1.0
  N  N18  1  0.346  0.869  0.278  1.0
  N  N19  1  0.654  0.631  0.778  1.0
  O  O20  1  0.249  0.734  0.907  1.0
  O  O21  1  0.749  0.766  0.593  1.0
  O  O22  1  0.251  0.734  0.093  1.0
  O  O23  1  0.751  0.766  0.407  1.0
  O  O24  1  0.751  0.266  0.093  1.0
  O  O25  1  0.251  0.234  0.407  1.0
  O  O26  1  0.249  0.234  0.593  1.0
  O  O27  1  0.749  0.266  0.907  1.0
[/CIF]
.
The structure described by BaSi2O2N2 crystallizes in the orthorhombic Pbcn space group. Ba(1) is bonded in a 10-coordinate geometry to two equivalent N(1) and eight equivalent O(1) atoms. 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 one Ba(1) and three equivalent Si(1) atoms. O(1) is bonded in a distorted single-bond geometry to four equivalent Ba(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_BaSi2(NO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.880
_cell_length_b   5.404
_cell_length_c   14.561
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   383.977
_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
  Ba  Ba0  1  0.750  0.754  0.000  1.0
  Ba  Ba1  1  0.250  0.746  0.500  1.0
  Ba  Ba2  1  0.250  0.246  0.000  1.0
  Ba  Ba3  1  0.750  0.254  0.500  1.0
  Si  Si4  1  0.301  0.660  0.800  1.0
  Si  Si5  1  0.301  0.160  0.700  1.0
  Si  Si6  1  0.801  0.340  0.800  1.0
  Si  Si7  1  0.199  0.160  0.300  1.0
  Si  Si8  1  0.699  0.340  0.200  1.0
  Si  Si9  1  0.699  0.840  0.300  1.0
  Si  Si10  1  0.199  0.660  0.200  1.0
  Si  Si11  1  0.801  0.840  0.700  1.0
  N  N12  1  0.154  0.369  0.778  1.0
  N  N13  1  0.154  0.869  0.722  1.0
  N  N14  1  0.654  0.131  0.722  1.0
  N  N15  1  0.346  0.369  0.222  1.0
  N  N16  1  0.846  0.131  0.278  1.0
  N  N17  1  0.846  0.631  0.222  1.0
  N  N18  1  0.346  0.869  0.278  1.0
  N  N19  1  0.654  0.631  0.778  1.0
  O  O20  1  0.249  0.734  0.907  1.0
  O  O21  1  0.749  0.766  0.593  1.0
  O  O22  1  0.251  0.734  0.093  1.0
  O  O23  1  0.751  0.766  0.407  1.0
  O  O24  1  0.751  0.266  0.093  1.0
  O  O25  1  0.251  0.234  0.407  1.0
  O  O26  1  0.249  0.234  0.593  1.0
  O  O27  1  0.749  0.266  0.907  1.0
[/CIF]
.