The crystal structure described by K2SrCl4 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. Sr(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms to form a mixture of distorted corner, edge, and face-sharing ClK4Sr2 octahedra. The corner-sharing octahedral tilt angles range from 17-45°. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms to form a mixture of distorted corner, edge, and face-sharing ClK4Sr2 octahedra. The corner-sharing octahedral tilt angles range from 17-45°. In the fourth Cl site, Cl(4) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SrCl4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.055
_cell_length_b   8.055
_cell_length_c   7.904
_cell_angle_alpha   70.587
_cell_angle_beta   70.587
_cell_angle_gamma   107.489
_symmetry_Int_Tables_number   1
_cell_volume   404.567
_cell_formula_units_Z   2
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
  K  K0  1  0.353  0.754  0.391  1.0
  K  K1  1  0.250  0.137  0.617  1.0
  K  K2  1  0.754  0.353  0.891  1.0
  K  K3  1  0.137  0.250  0.117  1.0
  Sr  Sr4  1  0.619  0.859  0.758  1.0
  Sr  Sr5  1  0.859  0.619  0.258  1.0
  Cl  Cl6  1  0.519  0.513  0.133  1.0
  Cl  Cl7  1  0.996  0.373  0.485  1.0
  Cl  Cl8  1  0.853  0.978  0.996  1.0
  Cl  Cl9  1  0.373  0.996  0.985  1.0
  Cl  Cl10  1  0.513  0.519  0.633  1.0
  Cl  Cl11  1  0.978  0.853  0.496  1.0
  Cl  Cl12  1  0.637  0.131  0.385  1.0
  Cl  Cl13  1  0.131  0.637  0.885  1.0
[/CIF]
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The crystal structure described by K2SrCl4 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. Sr(1) is bonded in a 8-coordinate geometry to two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(3), and two equivalent Cl(4) atoms. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms to form a mixture of distorted corner, edge, and face-sharing ClK4Sr2 octahedra. The corner-sharing octahedral tilt angles range from 17-45°. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms to form a mixture of distorted corner, edge, and face-sharing ClK4Sr2 octahedra. The corner-sharing octahedral tilt angles range from 17-45°. In the fourth Cl site, Cl(4) is bonded in a 6-coordinate geometry to two equivalent K(1), two equivalent K(2), and two equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SrCl4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.055
_cell_length_b   8.055
_cell_length_c   7.904
_cell_angle_alpha   70.587
_cell_angle_beta   70.587
_cell_angle_gamma   107.489
_symmetry_Int_Tables_number   1
_cell_volume   404.567
_cell_formula_units_Z   2
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
  K  K0  1  0.353  0.754  0.391  1.0
  K  K1  1  0.250  0.137  0.617  1.0
  K  K2  1  0.754  0.353  0.891  1.0
  K  K3  1  0.137  0.250  0.117  1.0
  Sr  Sr4  1  0.619  0.859  0.758  1.0
  Sr  Sr5  1  0.859  0.619  0.258  1.0
  Cl  Cl6  1  0.519  0.513  0.133  1.0
  Cl  Cl7  1  0.996  0.373  0.485  1.0
  Cl  Cl8  1  0.853  0.978  0.996  1.0
  Cl  Cl9  1  0.373  0.996  0.985  1.0
  Cl  Cl10  1  0.513  0.519  0.633  1.0
  Cl  Cl11  1  0.978  0.853  0.496  1.0
  Cl  Cl12  1  0.637  0.131  0.385  1.0
  Cl  Cl13  1  0.131  0.637  0.885  1.0
[/CIF]
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