data_[Si2Os2C2N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Si  1.9000  1.1000  0.5400
  Os  2.2000  1.3000  0.6730
  C  2.5500  0.7000  0.3000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [2.8350]
_cell_length_b [2.8632]
_cell_length_c [9.8053]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [SiOsCN]
_chemical_formula_sum '[Si2 Os2 C2 N2]'
_cell_volume [79.5899]
_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  2  0.0000  0.0000  0.5014  1
  Os  Os1  2  0.5000  0.0000  0.7292  1
  C  C2  2  0.0000  0.0000  0.1288  1
  N  N3  2  0.5000  0.0000  0.3946  1
]