The crystal structure described by SiBr4 is Silicon tetrafluoride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four tetrabromosilane molecules. Si(1) is bonded in a tetrahedral geometry to two equivalent Br(1,3) and two equivalent Br(2,4) atoms. There are two inequivalent Br sites. In the first Br site, Br(1,3) is bonded in a single-bond geometry to one Si(1) atom. In the second Br site, Br(2,4) is bonded in a single-bond geometry to one Si(1) atom. is represented by the CIF card [CIF]
data_SiBr4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.823
_cell_length_b   10.406
_cell_length_c   10.575
_cell_angle_alpha   102.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   731.864
_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  0.075  0.751  0.857  1.0
  Si  Si1  1  0.425  0.751  0.357  1.0
  Si  Si2  1  0.925  0.249  0.143  1.0
  Si  Si3  1  0.575  0.249  0.643  1.0
  Br  Br4  1  0.427  0.084  0.700  1.0
  Br  Br5  1  0.421  0.298  0.478  1.0
  Br  Br6  1  0.074  0.578  0.693  1.0
  Br  Br7  1  0.620  0.194  0.088  1.0
  Br  Br8  1  0.079  0.298  0.978  1.0
  Br  Br9  1  0.574  0.422  0.807  1.0
  Br  Br10  1  0.380  0.806  0.912  1.0
  Br  Br11  1  0.573  0.916  0.300  1.0
  Br  Br12  1  0.927  0.916  0.800  1.0
  Br  Br13  1  0.926  0.422  0.307  1.0
  Br  Br14  1  0.579  0.702  0.522  1.0
  Br  Br15  1  0.120  0.806  0.412  1.0
  Br  Br16  1  0.921  0.702  0.022  1.0
  Br  Br17  1  0.880  0.194  0.588  1.0
  Br  Br18  1  0.073  0.084  0.200  1.0
  Br  Br19  1  0.426  0.578  0.193  1.0
[/CIF]
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The crystal structure described by SiBr4 is Silicon tetrafluoride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four tetrabromosilane molecules. Si(1) is bonded in a tetrahedral geometry to two equivalent Br(1,3) and two equivalent Br(2,4) atoms. There are two inequivalent Br sites. In the first Br site, Br(1,3) is bonded in a single-bond geometry to one Si(1) atom. In the second Br site, Br(2,4) is bonded in a single-bond geometry to one Si(1) atom. is represented by the CIF card [CIF]
data_SiBr4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.823
_cell_length_b   10.406
_cell_length_c   10.575
_cell_angle_alpha   102.906
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   731.864
_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  0.075  0.751  0.857  1.0
  Si  Si1  1  0.425  0.751  0.357  1.0
  Si  Si2  1  0.925  0.249  0.143  1.0
  Si  Si3  1  0.575  0.249  0.643  1.0
  Br  Br4  1  0.427  0.084  0.700  1.0
  Br  Br5  1  0.421  0.298  0.478  1.0
  Br  Br6  1  0.074  0.578  0.693  1.0
  Br  Br7  1  0.620  0.194  0.088  1.0
  Br  Br8  1  0.079  0.298  0.978  1.0
  Br  Br9  1  0.574  0.422  0.807  1.0
  Br  Br10  1  0.380  0.806  0.912  1.0
  Br  Br11  1  0.573  0.916  0.300  1.0
  Br  Br12  1  0.927  0.916  0.800  1.0
  Br  Br13  1  0.926  0.422  0.307  1.0
  Br  Br14  1  0.579  0.702  0.522  1.0
  Br  Br15  1  0.120  0.806  0.412  1.0
  Br  Br16  1  0.921  0.702  0.022  1.0
  Br  Br17  1  0.880  0.194  0.588  1.0
  Br  Br18  1  0.073  0.084  0.200  1.0
  Br  Br19  1  0.426  0.578  0.193  1.0
[/CIF]
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