The structure described by MgH8(O6Cl)2 is alpha structured and crystallizes in the monoclinic C2 space group. The structure is zero-dimensional and consists of two MgH8(O6Cl)2 clusters. Mg(1) is bonded to one O(4), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form MgO6 octahedra that share corners with two equivalent Cl(1)O4 tetrahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(7) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mg(1) and one Cl(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cl(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent H(3) atoms. In the fifth O site, O(5) is bonded in a single-bond geometry to one Cl(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Cl(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent H(4) atoms. Cl(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form ClO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. is represented by the CIF card [CIF]
data_MgH8(ClO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.857
_cell_length_b   6.857
_cell_length_c   6.061
_cell_angle_alpha   72.319
_cell_angle_beta   72.319
_cell_angle_gamma   73.087
_symmetry_Int_Tables_number   1
_cell_volume   252.405
_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
  Mg  Mg0  1  0.990  0.010  0.500  1.0
  H  H1  1  0.289  0.100  0.628  1.0
  H  H2  1  0.093  0.171  0.820  1.0
  H  H3  1  0.623  0.287  0.637  1.0
  H  H4  1  0.713  0.377  0.363  1.0
  H  H5  1  0.269  0.637  0.635  1.0
  H  H6  1  0.900  0.711  0.372  1.0
  H  H7  1  0.363  0.731  0.365  1.0
  H  H8  1  0.829  0.907  0.180  1.0
  Cl  Cl9  1  0.283  0.316  0.092  1.0
  Cl  Cl10  1  0.684  0.717  0.908  1.0
  O  O11  1  0.136  0.138  0.663  1.0
  O  O12  1  0.135  0.174  0.144  1.0
  O  O13  1  0.455  0.204  0.203  1.0
  O  O14  1  0.739  0.261  0.500  1.0
  O  O15  1  0.359  0.370  0.831  1.0
  O  O16  1  0.169  0.504  0.174  1.0
  O  O17  1  0.796  0.545  0.797  1.0
  O  O18  1  0.630  0.641  0.169  1.0
  O  O19  1  0.244  0.756  0.500  1.0
  O  O20  1  0.496  0.831  0.826  1.0
  O  O21  1  0.862  0.864  0.337  1.0
  O  O22  1  0.826  0.865  0.856  1.0
[/CIF]
.
The structure described by MgH8(O6Cl)2 is alpha structured and crystallizes in the monoclinic C2 space group. The structure is zero-dimensional and consists of two MgH8(O6Cl)2 clusters. Mg(1) is bonded to one O(4), one O(7), two equivalent O(1), and two equivalent O(2) atoms to form MgO6 octahedra that share corners with two equivalent Cl(1)O4 tetrahedra. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(7) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mg(1) and one Cl(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cl(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent H(3) atoms. In the fifth O site, O(5) is bonded in a single-bond geometry to one Cl(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Cl(1) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent H(4) atoms. Cl(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form ClO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. is represented by the CIF card [CIF]
data_MgH8(ClO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.857
_cell_length_b   6.857
_cell_length_c   6.061
_cell_angle_alpha   72.319
_cell_angle_beta   72.319
_cell_angle_gamma   73.087
_symmetry_Int_Tables_number   1
_cell_volume   252.405
_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
  Mg  Mg0  1  0.990  0.010  0.500  1.0
  H  H1  1  0.289  0.100  0.628  1.0
  H  H2  1  0.093  0.171  0.820  1.0
  H  H3  1  0.623  0.287  0.637  1.0
  H  H4  1  0.713  0.377  0.363  1.0
  H  H5  1  0.269  0.637  0.635  1.0
  H  H6  1  0.900  0.711  0.372  1.0
  H  H7  1  0.363  0.731  0.365  1.0
  H  H8  1  0.829  0.907  0.180  1.0
  Cl  Cl9  1  0.283  0.316  0.092  1.0
  Cl  Cl10  1  0.684  0.717  0.908  1.0
  O  O11  1  0.136  0.138  0.663  1.0
  O  O12  1  0.135  0.174  0.144  1.0
  O  O13  1  0.455  0.204  0.203  1.0
  O  O14  1  0.739  0.261  0.500  1.0
  O  O15  1  0.359  0.370  0.831  1.0
  O  O16  1  0.169  0.504  0.174  1.0
  O  O17  1  0.796  0.545  0.797  1.0
  O  O18  1  0.630  0.641  0.169  1.0
  O  O19  1  0.244  0.756  0.500  1.0
  O  O20  1  0.496  0.831  0.826  1.0
  O  O21  1  0.862  0.864  0.337  1.0
  O  O22  1  0.826  0.865  0.856  1.0
[/CIF]
.