The structure described by K4MgRu2(OCl5)2 crystallizes in the monoclinic Cm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a body-centered cubic geometry to one Cl(3), one Cl(4), one Cl(6), one Cl(7), two equivalent Cl(5), and two equivalent Cl(8) atoms. In the second K site, K(2) is bonded to one Cl(3), one Cl(4), one Cl(6), one Cl(7), two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(5), and two equivalent Cl(8) atoms to form KCl12 cuboctahedra that share corners with four equivalent K(2)Cl12 cuboctahedra, faces with four equivalent K(2)Cl12 cuboctahedra, faces with two equivalent Mg(1)Cl5O octahedra, faces with two equivalent Ru(1)Cl5O octahedra, and faces with two equivalent Ru(2)Cl5O octahedra. Mg(1) is bonded to one O(2), one Cl(1), one Cl(6), one Cl(7), and two equivalent Cl(8) atoms to form distorted MgCl5O octahedra that share  a cornercorner with one Ru(1)Cl5O octahedra, corners with four equivalent Ru(2)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-3°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one Cl(1), one Cl(3), one Cl(4), and two equivalent Cl(5) atoms to form distorted RuCl5O octahedra that share  a cornercorner with one Mg(1)Cl5O octahedra,  a cornercorner with one Ru(2)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Ru site, Ru(2) is bonded to one O(1), one Cl(2), one Cl(6), one Cl(7), and two equivalent Cl(8) atoms to form RuCl5O octahedra that share  a cornercorner with one Ru(1)Cl5O octahedra, corners with four equivalent Mg(1)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Ru(1) and one Ru(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Mg(1) atom. There are eight inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 2-coordinate geometry to four equivalent K(2), one Mg(1), and one Ru(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to four equivalent K(2) and one Ru(2) atom. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(7)K4MgRu octahedra, corners with eight equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(4)K4Ru square pyramid,  an edgeedge with one Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(7)K4MgRu octahedra, edges with two equivalent Cl(4)K4Ru square pyramids, edges with two equivalent Cl(5)K4Ru square pyramids, and faces with two equivalent Cl(5)K4Ru square pyramids. The corner-sharing octahedral tilt angles range from 3-73°. In the fourth Cl site, Cl(4) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(7)K4MgRu octahedra, corners with eight equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(7)K4MgRu octahedra, edges with two equivalent Cl(3)K4Ru square pyramids, edges with two equivalent Cl(5)K4Ru square pyramids, and faces with two equivalent Cl(5)K4Ru square pyramids. The corner-sharing octahedral tilt angles range from 2-72°. In the fifth Cl site, Cl(5) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with four equivalent Cl(6)K4MgRu octahedra, corners with four equivalent Cl(7)K4MgRu octahedra, corners with four equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(5)K4Ru square pyramid, edges with two equivalent Cl(8)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, edges with two equivalent Cl(5)K4Ru square pyramids,  a faceface with one Cl(3)K4Ru square pyramid, and  a faceface with one Cl(4)K4Ru square pyramid. The corner-sharing octahedral tilt angles range from 2-73°. In the sixth Cl site, Cl(6) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(7)K4MgRu octahedra, corners with two equivalent Cl(3)K4Ru square pyramids, corners with two equivalent Cl(4)K4Ru square pyramids, corners with eight equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(7)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, and faces with four equivalent Cl(8)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the seventh Cl site, Cl(7) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(3)K4Ru square pyramids, corners with two equivalent Cl(4)K4Ru square pyramids, corners with eight equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, and faces with four equivalent Cl(8)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the eighth Cl site, Cl(8) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(8)K4MgRu octahedra, corners with four equivalent Cl(3)K4Ru square pyramids, corners with four equivalent Cl(4)K4Ru square pyramids, corners with four equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(8)K4MgRu octahedra, edges with two equivalent Cl(5)K4Ru square pyramids, faces with two equivalent Cl(6)K4MgRu octahedra, and faces with two equivalent Cl(7)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 1-6°. is represented by the CIF file [CIF]
data_K4MgRu2(Cl5O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.226
_cell_length_b   7.226
_cell_length_c   10.195
_cell_angle_alpha   110.792
_cell_angle_beta   110.792
_cell_angle_gamma   89.987
_symmetry_Int_Tables_number   1
_cell_volume   460.408
_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
  K  K0  1  0.495  0.993  0.990  1.0
  K  K1  1  0.993  0.495  0.990  1.0
  K  K2  1  0.257  0.758  0.516  1.0
  K  K3  1  0.758  0.257  0.516  1.0
  Mg  Mg4  1  0.610  0.610  0.228  1.0
  Ru  Ru5  1  0.899  0.899  0.798  1.0
  Ru  Ru6  1  0.106  0.106  0.214  1.0
  Cl  Cl7  1  0.752  0.752  0.503  1.0
  Cl  Cl8  1  0.240  0.240  0.480  1.0
  Cl  Cl9  1  0.117  0.117  0.773  1.0
  Cl  Cl10  1  0.654  0.654  0.771  1.0
  Cl  Cl11  1  0.655  0.117  0.772  1.0
  Cl  Cl12  1  0.117  0.655  0.772  1.0
  Cl  Cl13  1  0.877  0.877  0.227  1.0
  Cl  Cl14  1  0.350  0.350  0.228  1.0
  Cl  Cl15  1  0.350  0.877  0.227  1.0
  Cl  Cl16  1  0.877  0.350  0.227  1.0
  O  O17  1  0.001  0.001  0.002  1.0
  O  O18  1  0.510  0.510  0.016  1.0
[/CIF]
.
The structure described by K4MgRu2(OCl5)2 crystallizes in the monoclinic Cm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a body-centered cubic geometry to one Cl(3), one Cl(4), one Cl(6), one Cl(7), two equivalent Cl(5), and two equivalent Cl(8) atoms. In the second K site, K(2) is bonded to one Cl(3), one Cl(4), one Cl(6), one Cl(7), two equivalent Cl(1), two equivalent Cl(2), two equivalent Cl(5), and two equivalent Cl(8) atoms to form KCl12 cuboctahedra that share corners with four equivalent K(2)Cl12 cuboctahedra, faces with four equivalent K(2)Cl12 cuboctahedra, faces with two equivalent Mg(1)Cl5O octahedra, faces with two equivalent Ru(1)Cl5O octahedra, and faces with two equivalent Ru(2)Cl5O octahedra. Mg(1) is bonded to one O(2), one Cl(1), one Cl(6), one Cl(7), and two equivalent Cl(8) atoms to form distorted MgCl5O octahedra that share  a cornercorner with one Ru(1)Cl5O octahedra, corners with four equivalent Ru(2)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-3°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(1), one Cl(1), one Cl(3), one Cl(4), and two equivalent Cl(5) atoms to form distorted RuCl5O octahedra that share  a cornercorner with one Mg(1)Cl5O octahedra,  a cornercorner with one Ru(2)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Ru site, Ru(2) is bonded to one O(1), one Cl(2), one Cl(6), one Cl(7), and two equivalent Cl(8) atoms to form RuCl5O octahedra that share  a cornercorner with one Ru(1)Cl5O octahedra, corners with four equivalent Mg(1)Cl5O octahedra, and faces with four equivalent K(2)Cl12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Ru(1) and one Ru(2) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Mg(1) atom. There are eight inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 2-coordinate geometry to four equivalent K(2), one Mg(1), and one Ru(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to four equivalent K(2) and one Ru(2) atom. In the third Cl site, Cl(3) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(7)K4MgRu octahedra, corners with eight equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(4)K4Ru square pyramid,  an edgeedge with one Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(7)K4MgRu octahedra, edges with two equivalent Cl(4)K4Ru square pyramids, edges with two equivalent Cl(5)K4Ru square pyramids, and faces with two equivalent Cl(5)K4Ru square pyramids. The corner-sharing octahedral tilt angles range from 3-73°. In the fourth Cl site, Cl(4) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(7)K4MgRu octahedra, corners with eight equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(7)K4MgRu octahedra, edges with two equivalent Cl(3)K4Ru square pyramids, edges with two equivalent Cl(5)K4Ru square pyramids, and faces with two equivalent Cl(5)K4Ru square pyramids. The corner-sharing octahedral tilt angles range from 2-72°. In the fifth Cl site, Cl(5) is bonded to two equivalent K(1), two equivalent K(2), and one Ru(1) atom to form distorted ClK4Ru square pyramids that share corners with four equivalent Cl(6)K4MgRu octahedra, corners with four equivalent Cl(7)K4MgRu octahedra, corners with four equivalent Cl(8)K4MgRu octahedra,  a cornercorner with one Cl(5)K4Ru square pyramid, edges with two equivalent Cl(8)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, edges with two equivalent Cl(5)K4Ru square pyramids,  a faceface with one Cl(3)K4Ru square pyramid, and  a faceface with one Cl(4)K4Ru square pyramid. The corner-sharing octahedral tilt angles range from 2-73°. In the sixth Cl site, Cl(6) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(7)K4MgRu octahedra, corners with two equivalent Cl(3)K4Ru square pyramids, corners with two equivalent Cl(4)K4Ru square pyramids, corners with eight equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(7)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, and faces with four equivalent Cl(8)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the seventh Cl site, Cl(7) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(6)K4MgRu octahedra, corners with two equivalent Cl(3)K4Ru square pyramids, corners with two equivalent Cl(4)K4Ru square pyramids, corners with eight equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(6)K4MgRu octahedra,  an edgeedge with one Cl(3)K4Ru square pyramid,  an edgeedge with one Cl(4)K4Ru square pyramid, and faces with four equivalent Cl(8)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the eighth Cl site, Cl(8) is bonded to two equivalent K(1), two equivalent K(2), one Mg(1), and one Ru(2) atom to form distorted ClK4MgRu octahedra that share corners with two equivalent Cl(8)K4MgRu octahedra, corners with four equivalent Cl(3)K4Ru square pyramids, corners with four equivalent Cl(4)K4Ru square pyramids, corners with four equivalent Cl(5)K4Ru square pyramids, edges with two equivalent Cl(8)K4MgRu octahedra, edges with two equivalent Cl(5)K4Ru square pyramids, faces with two equivalent Cl(6)K4MgRu octahedra, and faces with two equivalent Cl(7)K4MgRu octahedra. The corner-sharing octahedral tilt angles range from 1-6°. is represented by the CIF file [CIF]
data_K4MgRu2(Cl5O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.226
_cell_length_b   7.226
_cell_length_c   10.195
_cell_angle_alpha   110.792
_cell_angle_beta   110.792
_cell_angle_gamma   89.987
_symmetry_Int_Tables_number   1
_cell_volume   460.408
_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
  K  K0  1  0.495  0.993  0.990  1.0
  K  K1  1  0.993  0.495  0.990  1.0
  K  K2  1  0.257  0.758  0.516  1.0
  K  K3  1  0.758  0.257  0.516  1.0
  Mg  Mg4  1  0.610  0.610  0.228  1.0
  Ru  Ru5  1  0.899  0.899  0.798  1.0
  Ru  Ru6  1  0.106  0.106  0.214  1.0
  Cl  Cl7  1  0.752  0.752  0.503  1.0
  Cl  Cl8  1  0.240  0.240  0.480  1.0
  Cl  Cl9  1  0.117  0.117  0.773  1.0
  Cl  Cl10  1  0.654  0.654  0.771  1.0
  Cl  Cl11  1  0.655  0.117  0.772  1.0
  Cl  Cl12  1  0.117  0.655  0.772  1.0
  Cl  Cl13  1  0.877  0.877  0.227  1.0
  Cl  Cl14  1  0.350  0.350  0.228  1.0
  Cl  Cl15  1  0.350  0.877  0.227  1.0
  Cl  Cl16  1  0.877  0.350  0.227  1.0
  O  O17  1  0.001  0.001  0.002  1.0
  O  O18  1  0.510  0.510  0.016  1.0
[/CIF]
.