The crystal structure described by SrSm(ClF)2 is Matlockite-derived structured and crystallizes in the tetragonal P4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one Cl(1), four equivalent Cl(2), and four equivalent F(1) atoms. Sm(1) is bonded in a 9-coordinate geometry to one Cl(2), four equivalent Cl(1), and four equivalent F(1) atoms. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Sr(1) and four equivalent Sm(1) atoms to form distorted ClSrSm4 trigonal bipyramids that share corners with twelve equivalent F(1)Sr2Sm2 tetrahedra, corners with four equivalent Cl(1)SrSm4 trigonal bipyramids, edges with four equivalent F(1)Sr2Sm2 tetrahedra, and edges with four equivalent Cl(1)SrSm4 trigonal bipyramids. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to four equivalent Sr(1) and one Sm(1) atom. F(1) is bonded to two equivalent Sr(1) and two equivalent Sm(1) atoms to form FSr2Sm2 tetrahedra that share corners with four equivalent F(1)Sr2Sm2 tetrahedra, corners with six equivalent Cl(1)SrSm4 trigonal bipyramids, edges with four equivalent F(1)Sr2Sm2 tetrahedra, and edges with two equivalent Cl(1)SrSm4 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSm(ClF)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.018
_cell_length_b   4.018
_cell_length_c   7.154
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   115.476
_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  0.500  0.796  1.0
  Sm  Sm1  1  0.000  0.000  0.227  1.0
  Cl  Cl2  1  0.500  0.500  0.344  1.0
  Cl  Cl3  1  0.000  0.000  0.632  1.0
  F  F4  1  0.500  0.000  0.000  1.0
  F  F5  1  0.000  0.500  0.000  1.0
[/CIF]
.
The crystal structure described by SrSm(ClF)2 is Matlockite-derived structured and crystallizes in the tetragonal P4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one Cl(1), four equivalent Cl(2), and four equivalent F(1) atoms. Sm(1) is bonded in a 9-coordinate geometry to one Cl(2), four equivalent Cl(1), and four equivalent F(1) atoms. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Sr(1) and four equivalent Sm(1) atoms to form distorted ClSrSm4 trigonal bipyramids that share corners with twelve equivalent F(1)Sr2Sm2 tetrahedra, corners with four equivalent Cl(1)SrSm4 trigonal bipyramids, edges with four equivalent F(1)Sr2Sm2 tetrahedra, and edges with four equivalent Cl(1)SrSm4 trigonal bipyramids. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to four equivalent Sr(1) and one Sm(1) atom. F(1) is bonded to two equivalent Sr(1) and two equivalent Sm(1) atoms to form FSr2Sm2 tetrahedra that share corners with four equivalent F(1)Sr2Sm2 tetrahedra, corners with six equivalent Cl(1)SrSm4 trigonal bipyramids, edges with four equivalent F(1)Sr2Sm2 tetrahedra, and edges with two equivalent Cl(1)SrSm4 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSm(ClF)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.018
_cell_length_b   4.018
_cell_length_c   7.154
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   115.476
_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  0.500  0.796  1.0
  Sm  Sm1  1  0.000  0.000  0.227  1.0
  Cl  Cl2  1  0.500  0.500  0.344  1.0
  Cl  Cl3  1  0.000  0.000  0.632  1.0
  F  F4  1  0.500  0.000  0.000  1.0
  F  F5  1  0.000  0.500  0.000  1.0
[/CIF]
.