The crystal structure described by Rb12Mg(OCl)4 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. There are twelve inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one Cl(1), and one Cl(2) atom. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to one O(2), one O(4), and one Cl(4) atom. In the third Rb site, Rb(3) is bonded in a distorted T-shaped geometry to one O(1), one O(3), and one Cl(3) atom. In the fourth Rb site, Rb(4) is bonded in a 2-coordinate geometry to one O(1) and one Cl(3) atom. In the fifth Rb site, Rb(5) is bonded in a 5-coordinate geometry to one O(2), one O(4), one Cl(2), one Cl(3), and one Cl(4) atom. In the sixth Rb site, Rb(6) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one Cl(1), and one Cl(2) atom. In the seventh Rb site, Rb(7) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), one Cl(3), and one Cl(4) atom. In the eighth Rb site, Rb(8) is bonded in a 4-coordinate geometry to one O(1), one O(3), one Cl(1), and one Cl(2) atom. In the ninth Rb site, Rb(9) is bonded in a 4-coordinate geometry to one O(2), one O(4), one Cl(1), and one Cl(2) atom. In the tenth Rb site, Rb(10) is bonded in a 4-coordinate geometry to one O(1), one O(3), one Cl(1), and one Cl(2) atom. In the eleventh Rb site, Rb(11) is bonded in a distorted trigonal bipyramidal geometry to one O(2), one O(4), one Cl(1), one Cl(2), and one Cl(4) atom. In the twelfth Rb site, Rb(12) is bonded in a 3-coordinate geometry to one O(2), one Cl(3), and one Cl(4) atom. Mg(1) is bonded in a distorted bent 120 degrees geometry to one O(3) and one Cl(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Rb(1), one Rb(10), one Rb(3), one Rb(4), and one Rb(8) atom to form corner-sharing ORb5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 33°. In the second O site, O(2) is bonded to one Rb(1), one Rb(11), one Rb(12), one Rb(2), one Rb(5), and one Rb(9) atom to form ORb6 octahedra that share corners with four equivalent O(4)Rb6 octahedra and  a cornercorner with one O(1)Rb5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 17-38°. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(10), one Rb(3), one Rb(7), one Rb(8), and one Mg(1) atom. In the fourth O site, O(4) is bonded to one Rb(11), one Rb(2), one Rb(5), one Rb(6), one Rb(7), and one Rb(9) atom to form corner-sharing ORb6 octahedra. The corner-sharing octahedral tilt angles range from 17-38°. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(10), one Rb(11), one Rb(6), one Rb(8), and one Rb(9) atom. In the second Cl site, Cl(2) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(10), one Rb(11), one Rb(5), one Rb(6), one Rb(8), and one Rb(9) atom. In the third Cl site, Cl(3) is bonded in a distorted pentagonal planar geometry to one Rb(12), one Rb(3), one Rb(4), one Rb(5), and one Rb(7) atom. In the fourth Cl site, Cl(4) is bonded in a 6-coordinate geometry to one Rb(11), one Rb(12), one Rb(2), one Rb(5), one Rb(7), and one Mg(1) atom. is represented by the CIF card [CIF]
data_Rb12Mg(ClO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.580
_cell_length_b   8.084
_cell_length_c   12.093
_cell_angle_alpha   87.956
_cell_angle_beta   84.437
_cell_angle_gamma   86.547
_symmetry_Int_Tables_number   1
_cell_volume   735.928
_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
  Rb  Rb0  1  0.111  0.448  0.280  1.0
  Rb  Rb1  1  0.174  0.203  0.568  1.0
  Rb  Rb2  1  0.312  0.279  0.956  1.0
  Rb  Rb3  1  0.294  0.730  0.987  1.0
  Rb  Rb4  1  0.252  0.699  0.531  1.0
  Rb  Rb5  1  0.405  0.985  0.288  1.0
  Rb  Rb6  1  0.497  0.961  0.729  1.0
  Rb  Rb7  1  0.800  0.299  0.084  1.0
  Rb  Rb8  1  0.700  0.267  0.473  1.0
  Rb  Rb9  1  0.811  0.777  0.088  1.0
  Rb  Rb10  1  0.759  0.763  0.452  1.0
  Rb  Rb11  1  0.891  0.519  0.733  1.0
  Mg  Mg12  1  0.893  0.047  0.861  1.0
  Cl  Cl13  1  0.969  0.041  0.278  1.0
  Cl  Cl14  1  0.524  0.568  0.268  1.0
  Cl  Cl15  1  0.450  0.540  0.744  1.0
  Cl  Cl16  1  0.914  0.918  0.664  1.0
  O  O17  1  0.061  0.517  0.062  1.0
  O  O18  1  0.977  0.484  0.508  1.0
  O  O19  1  0.663  0.039  0.938  1.0
  O  O20  1  0.459  0.999  0.494  1.0
[/CIF]
.
The crystal structure described by Rb12Mg(OCl)4 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. There are twelve inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one Cl(1), and one Cl(2) atom. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to one O(2), one O(4), and one Cl(4) atom. In the third Rb site, Rb(3) is bonded in a distorted T-shaped geometry to one O(1), one O(3), and one Cl(3) atom. In the fourth Rb site, Rb(4) is bonded in a 2-coordinate geometry to one O(1) and one Cl(3) atom. In the fifth Rb site, Rb(5) is bonded in a 5-coordinate geometry to one O(2), one O(4), one Cl(2), one Cl(3), and one Cl(4) atom. In the sixth Rb site, Rb(6) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one Cl(1), and one Cl(2) atom. In the seventh Rb site, Rb(7) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), one Cl(3), and one Cl(4) atom. In the eighth Rb site, Rb(8) is bonded in a 4-coordinate geometry to one O(1), one O(3), one Cl(1), and one Cl(2) atom. In the ninth Rb site, Rb(9) is bonded in a 4-coordinate geometry to one O(2), one O(4), one Cl(1), and one Cl(2) atom. In the tenth Rb site, Rb(10) is bonded in a 4-coordinate geometry to one O(1), one O(3), one Cl(1), and one Cl(2) atom. In the eleventh Rb site, Rb(11) is bonded in a distorted trigonal bipyramidal geometry to one O(2), one O(4), one Cl(1), one Cl(2), and one Cl(4) atom. In the twelfth Rb site, Rb(12) is bonded in a 3-coordinate geometry to one O(2), one Cl(3), and one Cl(4) atom. Mg(1) is bonded in a distorted bent 120 degrees geometry to one O(3) and one Cl(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Rb(1), one Rb(10), one Rb(3), one Rb(4), and one Rb(8) atom to form corner-sharing ORb5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 33°. In the second O site, O(2) is bonded to one Rb(1), one Rb(11), one Rb(12), one Rb(2), one Rb(5), and one Rb(9) atom to form ORb6 octahedra that share corners with four equivalent O(4)Rb6 octahedra and  a cornercorner with one O(1)Rb5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 17-38°. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Rb(10), one Rb(3), one Rb(7), one Rb(8), and one Mg(1) atom. In the fourth O site, O(4) is bonded to one Rb(11), one Rb(2), one Rb(5), one Rb(6), one Rb(7), and one Rb(9) atom to form corner-sharing ORb6 octahedra. The corner-sharing octahedral tilt angles range from 17-38°. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(10), one Rb(11), one Rb(6), one Rb(8), and one Rb(9) atom. In the second Cl site, Cl(2) is bonded in a 7-coordinate geometry to one Rb(1), one Rb(10), one Rb(11), one Rb(5), one Rb(6), one Rb(8), and one Rb(9) atom. In the third Cl site, Cl(3) is bonded in a distorted pentagonal planar geometry to one Rb(12), one Rb(3), one Rb(4), one Rb(5), and one Rb(7) atom. In the fourth Cl site, Cl(4) is bonded in a 6-coordinate geometry to one Rb(11), one Rb(12), one Rb(2), one Rb(5), one Rb(7), and one Mg(1) atom. is represented by the CIF card [CIF]
data_Rb12Mg(ClO)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.580
_cell_length_b   8.084
_cell_length_c   12.093
_cell_angle_alpha   87.956
_cell_angle_beta   84.437
_cell_angle_gamma   86.547
_symmetry_Int_Tables_number   1
_cell_volume   735.928
_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
  Rb  Rb0  1  0.111  0.448  0.280  1.0
  Rb  Rb1  1  0.174  0.203  0.568  1.0
  Rb  Rb2  1  0.312  0.279  0.956  1.0
  Rb  Rb3  1  0.294  0.730  0.987  1.0
  Rb  Rb4  1  0.252  0.699  0.531  1.0
  Rb  Rb5  1  0.405  0.985  0.288  1.0
  Rb  Rb6  1  0.497  0.961  0.729  1.0
  Rb  Rb7  1  0.800  0.299  0.084  1.0
  Rb  Rb8  1  0.700  0.267  0.473  1.0
  Rb  Rb9  1  0.811  0.777  0.088  1.0
  Rb  Rb10  1  0.759  0.763  0.452  1.0
  Rb  Rb11  1  0.891  0.519  0.733  1.0
  Mg  Mg12  1  0.893  0.047  0.861  1.0
  Cl  Cl13  1  0.969  0.041  0.278  1.0
  Cl  Cl14  1  0.524  0.568  0.268  1.0
  Cl  Cl15  1  0.450  0.540  0.744  1.0
  Cl  Cl16  1  0.914  0.918  0.664  1.0
  O  O17  1  0.061  0.517  0.062  1.0
  O  O18  1  0.977  0.484  0.508  1.0
  O  O19  1  0.663  0.039  0.938  1.0
  O  O20  1  0.459  0.999  0.494  1.0
[/CIF]
.