The structure described by Ba3LaCl9 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one Cl(3), one Cl(6), two equivalent Cl(2), and four equivalent Cl(5) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one Cl(4), two equivalent Cl(5), two equivalent Cl(6), and four equivalent Cl(1) atoms. In the third Ba site, Ba(3) is bonded in a 7-coordinate geometry to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(5) atoms. La(1) is bonded in an octahedral geometry to one Cl(3), one Cl(6), two equivalent Cl(1), and two equivalent Cl(2) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Ba(3), two equivalent Ba(2), and one La(1) atom to form distorted ClBa3La tetrahedra that share corners with two equivalent Cl(1)Ba3La tetrahedra, corners with four equivalent Cl(5)Ba4 tetrahedra,  an edgeedge with one Cl(5)Ba4 tetrahedra, and edges with three equivalent Cl(1)Ba3La tetrahedra. In the second Cl site, Cl(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(3), and one La(1) atom. In the third Cl site, Cl(3) is bonded in an L-shaped geometry to one Ba(1) and one La(1) atom. In the fourth Cl site, Cl(4) is bonded in a bent 120 degrees geometry to one Ba(2) and one Ba(3) atom. In the fifth Cl site, Cl(5) is bonded to one Ba(2), one Ba(3), and two equivalent Ba(1) atoms to form ClBa4 tetrahedra that share corners with two equivalent Cl(5)Ba4 tetrahedra, corners with four equivalent Cl(1)Ba3La tetrahedra,  an edgeedge with one Cl(1)Ba3La tetrahedra, and edges with three equivalent Cl(5)Ba4 tetrahedra. In the sixth Cl site, Cl(6) is bonded in a 2-coordinate geometry to one Ba(1), two equivalent Ba(2), and one La(1) atom. is represented by the CIF card [CIF]
data_Ba3LaCl9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.349
_cell_length_b   12.521
_cell_length_c   18.520
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1704.078
_cell_formula_units_Z   4
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
  Ba  Ba0  1  0.750  0.050  0.906  1.0
  Ba  Ba1  1  0.750  0.188  0.472  1.0
  Ba  Ba2  1  0.250  0.233  0.675  1.0
  Ba  Ba3  1  0.750  0.267  0.175  1.0
  Ba  Ba4  1  0.250  0.312  0.972  1.0
  Ba  Ba5  1  0.250  0.450  0.406  1.0
  Ba  Ba6  1  0.750  0.550  0.594  1.0
  Ba  Ba7  1  0.750  0.688  0.028  1.0
  Ba  Ba8  1  0.250  0.733  0.825  1.0
  Ba  Ba9  1  0.750  0.767  0.325  1.0
  Ba  Ba10  1  0.250  0.812  0.528  1.0
  Ba  Ba11  1  0.250  0.950  0.094  1.0
  La  La12  1  0.250  0.033  0.324  1.0
  La  La13  1  0.750  0.467  0.824  1.0
  La  La14  1  0.250  0.533  0.176  1.0
  La  La15  1  0.750  0.967  0.676  1.0
  Cl  Cl16  1  0.488  0.063  0.585  1.0
  Cl  Cl17  1  0.012  0.063  0.585  1.0
  Cl  Cl18  1  0.511  0.079  0.226  1.0
  Cl  Cl19  1  0.989  0.079  0.226  1.0
  Cl  Cl20  1  0.750  0.161  0.747  1.0
  Cl  Cl21  1  0.250  0.177  0.840  1.0
  Cl  Cl22  1  0.499  0.139  0.039  1.0
  Cl  Cl23  1  0.001  0.139  0.039  1.0
  Cl  Cl24  1  0.250  0.197  0.423  1.0
  Cl  Cl25  1  0.750  0.303  0.923  1.0
  Cl  Cl26  1  0.999  0.361  0.539  1.0
  Cl  Cl27  1  0.501  0.361  0.539  1.0
  Cl  Cl28  1  0.750  0.323  0.340  1.0
  Cl  Cl29  1  0.250  0.339  0.247  1.0
  Cl  Cl30  1  0.011  0.421  0.726  1.0
  Cl  Cl31  1  0.489  0.421  0.726  1.0
  Cl  Cl32  1  0.988  0.437  0.085  1.0
  Cl  Cl33  1  0.512  0.437  0.085  1.0
  Cl  Cl34  1  0.488  0.563  0.915  1.0
  Cl  Cl35  1  0.012  0.563  0.915  1.0
  Cl  Cl36  1  0.989  0.579  0.274  1.0
  Cl  Cl37  1  0.511  0.579  0.274  1.0
  Cl  Cl38  1  0.750  0.661  0.753  1.0
  Cl  Cl39  1  0.250  0.677  0.660  1.0
  Cl  Cl40  1  0.499  0.639  0.461  1.0
  Cl  Cl41  1  0.001  0.639  0.461  1.0
  Cl  Cl42  1  0.250  0.697  0.077  1.0
  Cl  Cl43  1  0.750  0.803  0.577  1.0
  Cl  Cl44  1  0.999  0.861  0.961  1.0
  Cl  Cl45  1  0.501  0.861  0.961  1.0
  Cl  Cl46  1  0.750  0.823  0.160  1.0
  Cl  Cl47  1  0.250  0.839  0.253  1.0
  Cl  Cl48  1  0.489  0.921  0.774  1.0
  Cl  Cl49  1  0.011  0.921  0.774  1.0
  Cl  Cl50  1  0.988  0.937  0.415  1.0
  Cl  Cl51  1  0.512  0.937  0.415  1.0
[/CIF]
.
The structure described by Ba3LaCl9 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one Cl(3), one Cl(6), two equivalent Cl(2), and four equivalent Cl(5) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one Cl(4), two equivalent Cl(5), two equivalent Cl(6), and four equivalent Cl(1) atoms. In the third Ba site, Ba(3) is bonded in a 7-coordinate geometry to one Cl(4), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(5) atoms. La(1) is bonded in an octahedral geometry to one Cl(3), one Cl(6), two equivalent Cl(1), and two equivalent Cl(2) atoms. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded to one Ba(3), two equivalent Ba(2), and one La(1) atom to form distorted ClBa3La tetrahedra that share corners with two equivalent Cl(1)Ba3La tetrahedra, corners with four equivalent Cl(5)Ba4 tetrahedra,  an edgeedge with one Cl(5)Ba4 tetrahedra, and edges with three equivalent Cl(1)Ba3La tetrahedra. In the second Cl site, Cl(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(3), and one La(1) atom. In the third Cl site, Cl(3) is bonded in an L-shaped geometry to one Ba(1) and one La(1) atom. In the fourth Cl site, Cl(4) is bonded in a bent 120 degrees geometry to one Ba(2) and one Ba(3) atom. In the fifth Cl site, Cl(5) is bonded to one Ba(2), one Ba(3), and two equivalent Ba(1) atoms to form ClBa4 tetrahedra that share corners with two equivalent Cl(5)Ba4 tetrahedra, corners with four equivalent Cl(1)Ba3La tetrahedra,  an edgeedge with one Cl(1)Ba3La tetrahedra, and edges with three equivalent Cl(5)Ba4 tetrahedra. In the sixth Cl site, Cl(6) is bonded in a 2-coordinate geometry to one Ba(1), two equivalent Ba(2), and one La(1) atom. is represented by the CIF card [CIF]
data_Ba3LaCl9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.349
_cell_length_b   12.521
_cell_length_c   18.520
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1704.078
_cell_formula_units_Z   4
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
  Ba  Ba0  1  0.750  0.050  0.906  1.0
  Ba  Ba1  1  0.750  0.188  0.472  1.0
  Ba  Ba2  1  0.250  0.233  0.675  1.0
  Ba  Ba3  1  0.750  0.267  0.175  1.0
  Ba  Ba4  1  0.250  0.312  0.972  1.0
  Ba  Ba5  1  0.250  0.450  0.406  1.0
  Ba  Ba6  1  0.750  0.550  0.594  1.0
  Ba  Ba7  1  0.750  0.688  0.028  1.0
  Ba  Ba8  1  0.250  0.733  0.825  1.0
  Ba  Ba9  1  0.750  0.767  0.325  1.0
  Ba  Ba10  1  0.250  0.812  0.528  1.0
  Ba  Ba11  1  0.250  0.950  0.094  1.0
  La  La12  1  0.250  0.033  0.324  1.0
  La  La13  1  0.750  0.467  0.824  1.0
  La  La14  1  0.250  0.533  0.176  1.0
  La  La15  1  0.750  0.967  0.676  1.0
  Cl  Cl16  1  0.488  0.063  0.585  1.0
  Cl  Cl17  1  0.012  0.063  0.585  1.0
  Cl  Cl18  1  0.511  0.079  0.226  1.0
  Cl  Cl19  1  0.989  0.079  0.226  1.0
  Cl  Cl20  1  0.750  0.161  0.747  1.0
  Cl  Cl21  1  0.250  0.177  0.840  1.0
  Cl  Cl22  1  0.499  0.139  0.039  1.0
  Cl  Cl23  1  0.001  0.139  0.039  1.0
  Cl  Cl24  1  0.250  0.197  0.423  1.0
  Cl  Cl25  1  0.750  0.303  0.923  1.0
  Cl  Cl26  1  0.999  0.361  0.539  1.0
  Cl  Cl27  1  0.501  0.361  0.539  1.0
  Cl  Cl28  1  0.750  0.323  0.340  1.0
  Cl  Cl29  1  0.250  0.339  0.247  1.0
  Cl  Cl30  1  0.011  0.421  0.726  1.0
  Cl  Cl31  1  0.489  0.421  0.726  1.0
  Cl  Cl32  1  0.988  0.437  0.085  1.0
  Cl  Cl33  1  0.512  0.437  0.085  1.0
  Cl  Cl34  1  0.488  0.563  0.915  1.0
  Cl  Cl35  1  0.012  0.563  0.915  1.0
  Cl  Cl36  1  0.989  0.579  0.274  1.0
  Cl  Cl37  1  0.511  0.579  0.274  1.0
  Cl  Cl38  1  0.750  0.661  0.753  1.0
  Cl  Cl39  1  0.250  0.677  0.660  1.0
  Cl  Cl40  1  0.499  0.639  0.461  1.0
  Cl  Cl41  1  0.001  0.639  0.461  1.0
  Cl  Cl42  1  0.250  0.697  0.077  1.0
  Cl  Cl43  1  0.750  0.803  0.577  1.0
  Cl  Cl44  1  0.999  0.861  0.961  1.0
  Cl  Cl45  1  0.501  0.861  0.961  1.0
  Cl  Cl46  1  0.750  0.823  0.160  1.0
  Cl  Cl47  1  0.250  0.839  0.253  1.0
  Cl  Cl48  1  0.489  0.921  0.774  1.0
  Cl  Cl49  1  0.011  0.921  0.774  1.0
  Cl  Cl50  1  0.988  0.937  0.415  1.0
  Cl  Cl51  1  0.512  0.937  0.415  1.0
[/CIF]
.