The material described by Sr3CrF12 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a cuboctahedral geometry to four equivalent F(1), four equivalent F(2), and four equivalent F(3) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. Cr(1) is bonded in a distorted square co-planar geometry to four equivalent F(1) and four equivalent F(3) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Cr(1) atom. In the second F site, F(2) is bonded in a bent 120 degrees geometry to one Sr(1) and one Sr(2) atom. In the third F site, F(3) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one Cr(1) atom. is represented by the CIF card [CIF]
data_Sr3CrF12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.917
_cell_length_b   7.681
_cell_length_c   7.554
_cell_angle_alpha   120.557
_cell_angle_beta   102.991
_cell_angle_gamma   63.757
_symmetry_Int_Tables_number   1
_cell_volume   309.964
_cell_formula_units_Z   1
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  0.500  0.000  0.000  1.0
  Sr  Sr1  1  0.000  0.500  0.500  1.0
  Sr  Sr2  1  0.000  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.000  0.000  1.0
  F  F4  1  0.902  0.664  0.845  1.0
  F  F5  1  0.098  0.336  0.155  1.0
  F  F6  1  0.641  0.028  0.376  1.0
  F  F7  1  0.098  0.181  0.845  1.0
  F  F8  1  0.359  0.972  0.624  1.0
  F  F9  1  0.902  0.819  0.155  1.0
  F  F10  1  0.205  0.773  0.785  1.0
  F  F11  1  0.359  0.348  0.376  1.0
  F  F12  1  0.795  0.227  0.215  1.0
  F  F13  1  0.641  0.652  0.624  1.0
  F  F14  1  0.795  0.012  0.785  1.0
  F  F15  1  0.205  0.988  0.215  1.0
[/CIF]
.
The material described by Sr3CrF12 crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a cuboctahedral geometry to four equivalent F(1), four equivalent F(2), and four equivalent F(3) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent F(1), two equivalent F(2), and two equivalent F(3) atoms. Cr(1) is bonded in a distorted square co-planar geometry to four equivalent F(1) and four equivalent F(3) atoms. There are three inequivalent F sites. In the first F site, F(1) is bonded in a 3-coordinate geometry to one Sr(1), one Sr(2), and one Cr(1) atom. In the second F site, F(2) is bonded in a bent 120 degrees geometry to one Sr(1) and one Sr(2) atom. In the third F site, F(3) is bonded in a distorted single-bond geometry to one Sr(1), one Sr(2), and one Cr(1) atom. is represented by the CIF card [CIF]
data_Sr3CrF12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.917
_cell_length_b   7.681
_cell_length_c   7.554
_cell_angle_alpha   120.557
_cell_angle_beta   102.991
_cell_angle_gamma   63.757
_symmetry_Int_Tables_number   1
_cell_volume   309.964
_cell_formula_units_Z   1
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  0.500  0.000  0.000  1.0
  Sr  Sr1  1  0.000  0.500  0.500  1.0
  Sr  Sr2  1  0.000  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.000  0.000  1.0
  F  F4  1  0.902  0.664  0.845  1.0
  F  F5  1  0.098  0.336  0.155  1.0
  F  F6  1  0.641  0.028  0.376  1.0
  F  F7  1  0.098  0.181  0.845  1.0
  F  F8  1  0.359  0.972  0.624  1.0
  F  F9  1  0.902  0.819  0.155  1.0
  F  F10  1  0.205  0.773  0.785  1.0
  F  F11  1  0.359  0.348  0.376  1.0
  F  F12  1  0.795  0.227  0.215  1.0
  F  F13  1  0.641  0.652  0.624  1.0
  F  F14  1  0.795  0.012  0.785  1.0
  F  F15  1  0.205  0.988  0.215  1.0
[/CIF]
.