data_KMgCl2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.61
_cell_length_b   5.13
_cell_length_c   5.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KMgCl2
_chemical_formula_sum   'K1 Mg1 Cl2'
_cell_volume   101.47
_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  K2  1  0.0  0.57  0.74  1.0
  Mg  Mg3  1  0.0  0.0  0.0  1.0
  Cl  Cl0  1  0.8  0.0  0.74  1.0
  Cl  Cl1  1  0.8  0.57  0.0  1.0

data_KMgCl2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.61
_cell_length_b   5.13
_cell_length_c   5.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KMgCl2
_chemical_formula_sum   'K1 Mg1 Cl2'
_cell_volume   101.47
_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  0.0  0.57  0.74  1.0
  Mg  Mg1  1  0.0  0.0  0.0  1.0
  Cl  Cl2  1  0.8  0.0  0.74  1.0
  Cl  Cl3  1  0.8  0.57  0.0  1.0

K Mg Cl Cl
K Mg Cl Cl 0 3 - o + 1 2 - o - 
KClMgCl crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one potassium chloride molecule and one MgCl cluster. In the MgCl cluster, Mg(1) is bonded in a distorted single-bond geometry to one Cl(1) atom. The Mg(1)-Cl(1) bond length is 1.58 Å. Cl(1) is bonded in a distorted single-bond geometry to one Mg(1) atom.