The compound described by SrF2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded to three equivalent F(1) and four equivalent F(2) atoms to form a mixture of distorted corner and edge-sharing SrF7 hexagonal pyramids. There are two inequivalent F sites. In the first F site, F(2) is bonded to four equivalent Sr(1) atoms to form a mixture of corner and edge-sharing FSr4 tetrahedra. In the second F site, F(1) is bonded in a trigonal non-coplanar geometry to three equivalent Sr(1) atoms. is represented by the CIF file [CIF]
data_SrF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.069
_cell_length_b   4.426
_cell_length_c   12.258
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   220.768
_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
  Sr  Sr0  1  0.250  0.433  0.637  1.0
  Sr  Sr1  1  0.250  0.067  0.137  1.0
  Sr  Sr2  1  0.750  0.567  0.363  1.0
  Sr  Sr3  1  0.750  0.933  0.863  1.0
  F  F4  1  0.250  0.796  0.962  1.0
  F  F5  1  0.250  0.704  0.462  1.0
  F  F6  1  0.750  0.204  0.038  1.0
  F  F7  1  0.750  0.296  0.538  1.0
  F  F8  1  0.250  0.564  0.229  1.0
  F  F9  1  0.250  0.936  0.729  1.0
  F  F10  1  0.750  0.436  0.771  1.0
  F  F11  1  0.750  0.064  0.271  1.0
[/CIF]
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The compound described by SrF2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded to three equivalent F(1) and four equivalent F(2) atoms to form a mixture of distorted corner and edge-sharing SrF7 hexagonal pyramids. There are two inequivalent F sites. In the first F site, F(2) is bonded to four equivalent Sr(1) atoms to form a mixture of corner and edge-sharing FSr4 tetrahedra. In the second F site, F(1) is bonded in a trigonal non-coplanar geometry to three equivalent Sr(1) atoms. is represented by the CIF file [CIF]
data_SrF2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.069
_cell_length_b   4.426
_cell_length_c   12.258
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   220.768
_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
  Sr  Sr0  1  0.250  0.433  0.637  1.0
  Sr  Sr1  1  0.250  0.067  0.137  1.0
  Sr  Sr2  1  0.750  0.567  0.363  1.0
  Sr  Sr3  1  0.750  0.933  0.863  1.0
  F  F4  1  0.250  0.796  0.962  1.0
  F  F5  1  0.250  0.704  0.462  1.0
  F  F6  1  0.750  0.204  0.038  1.0
  F  F7  1  0.750  0.296  0.538  1.0
  F  F8  1  0.250  0.564  0.229  1.0
  F  F9  1  0.250  0.936  0.729  1.0
  F  F10  1  0.750  0.436  0.771  1.0
  F  F11  1  0.750  0.064  0.271  1.0
[/CIF]
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