The material structure described by SnF2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one F(1), one F(2), one F(4), and two equivalent F(3) atoms to form distorted corner-sharing SnF5 square pyramids. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to one F(1), one F(4), and two equivalent F(2) atoms. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one Sn(2) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Sn(1) and two equivalent Sn(2) atoms. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Sn(1) atoms. In the fourth F site, F(4) is bonded in a linear geometry to one Sn(1) and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SnF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.877
_cell_length_b   6.983
_cell_length_c   13.386
_cell_angle_alpha   77.858
_cell_angle_beta   79.505
_cell_angle_gamma   69.564
_symmetry_Int_Tables_number   1
_cell_volume   414.659
_cell_formula_units_Z   8
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
  Sn  Sn0  1  0.354  0.546  0.686  1.0
  Sn  Sn1  1  0.586  0.954  0.814  1.0
  Sn  Sn2  1  0.646  0.454  0.314  1.0
  Sn  Sn3  1  0.414  0.046  0.186  1.0
  Sn  Sn4  1  0.126  0.185  0.558  1.0
  Sn  Sn5  1  0.869  0.315  0.942  1.0
  Sn  Sn6  1  0.874  0.815  0.442  1.0
  Sn  Sn7  1  0.131  0.685  0.058  1.0
  F  F8  1  0.861  0.019  0.917  1.0
  F  F9  1  0.797  0.481  0.583  1.0
  F  F10  1  0.139  0.981  0.083  1.0
  F  F11  1  0.203  0.519  0.417  1.0
  F  F12  1  0.164  0.811  0.542  1.0
  F  F13  1  0.518  0.689  0.958  1.0
  F  F14  1  0.836  0.189  0.458  1.0
  F  F15  1  0.482  0.311  0.042  1.0
  F  F16  1  0.509  0.208  0.306  1.0
  F  F17  1  0.024  0.292  0.194  1.0
  F  F18  1  0.491  0.792  0.694  1.0
  F  F19  1  0.976  0.708  0.806  1.0
  F  F20  1  0.398  0.590  0.180  1.0
  F  F21  1  0.167  0.910  0.320  1.0
  F  F22  1  0.602  0.410  0.820  1.0
  F  F23  1  0.833  0.090  0.680  1.0
[/CIF]
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The material structure described by SnF2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one F(1), one F(2), one F(4), and two equivalent F(3) atoms to form distorted corner-sharing SnF5 square pyramids. In the second Sn site, Sn(2) is bonded in a 3-coordinate geometry to one F(1), one F(4), and two equivalent F(2) atoms. There are four inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 120 degrees geometry to one Sn(1) and one Sn(2) atom. In the second F site, F(2) is bonded in a 3-coordinate geometry to one Sn(1) and two equivalent Sn(2) atoms. In the third F site, F(3) is bonded in a bent 150 degrees geometry to two equivalent Sn(1) atoms. In the fourth F site, F(4) is bonded in a linear geometry to one Sn(1) and one Sn(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SnF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.877
_cell_length_b   6.983
_cell_length_c   13.386
_cell_angle_alpha   77.858
_cell_angle_beta   79.505
_cell_angle_gamma   69.564
_symmetry_Int_Tables_number   1
_cell_volume   414.659
_cell_formula_units_Z   8
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
  Sn  Sn0  1  0.354  0.546  0.686  1.0
  Sn  Sn1  1  0.586  0.954  0.814  1.0
  Sn  Sn2  1  0.646  0.454  0.314  1.0
  Sn  Sn3  1  0.414  0.046  0.186  1.0
  Sn  Sn4  1  0.126  0.185  0.558  1.0
  Sn  Sn5  1  0.869  0.315  0.942  1.0
  Sn  Sn6  1  0.874  0.815  0.442  1.0
  Sn  Sn7  1  0.131  0.685  0.058  1.0
  F  F8  1  0.861  0.019  0.917  1.0
  F  F9  1  0.797  0.481  0.583  1.0
  F  F10  1  0.139  0.981  0.083  1.0
  F  F11  1  0.203  0.519  0.417  1.0
  F  F12  1  0.164  0.811  0.542  1.0
  F  F13  1  0.518  0.689  0.958  1.0
  F  F14  1  0.836  0.189  0.458  1.0
  F  F15  1  0.482  0.311  0.042  1.0
  F  F16  1  0.509  0.208  0.306  1.0
  F  F17  1  0.024  0.292  0.194  1.0
  F  F18  1  0.491  0.792  0.694  1.0
  F  F19  1  0.976  0.708  0.806  1.0
  F  F20  1  0.398  0.590  0.180  1.0
  F  F21  1  0.167  0.910  0.320  1.0
  F  F22  1  0.602  0.410  0.820  1.0
  F  F23  1  0.833  0.090  0.680  1.0
[/CIF]
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