The material described by Ba2Y5Cl19 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded to one Cl(2), one Cl(4), one Cl(5), and one Cl(8) atom to form distorted BaCl4 tetrahedra that share  a cornercorner with one Y(1)Cl6 octahedra and corners with three equivalent Y(2)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 30-53°. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(1), one Cl(10), one Cl(2), one Cl(6), one Cl(7), and one Cl(9) atom to form YCl6 octahedra that share  a cornercorner with one Y(1)Cl6 octahedra, corners with two equivalent Y(2)Cl6 octahedra, corners with two equivalent Y(3)Cl6 octahedra, and  a cornercorner with one Ba(1)Cl4 tetrahedra. The corner-sharing octahedral tilt angles range from 0-33°. In the second Y site, Y(2) is bonded to one Cl(10), one Cl(3), one Cl(4), one Cl(5), one Cl(8), and one Cl(9) atom to form YCl6 octahedra that share  a cornercorner with one Y(3)Cl6 octahedra, corners with two equivalent Y(1)Cl6 octahedra, and corners with three equivalent Ba(1)Cl4 tetrahedra. The corner-sharing octahedral tilt angles range from 9-33°. In the third Y site, Y(3) is bonded to two equivalent Cl(3), two equivalent Cl(6), and two equivalent Cl(7) atoms to form corner-sharing YCl6 octahedra. The corner-sharing octahedral tilt angles range from 9-20°. There are ten inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a linear geometry to two equivalent Y(1) atoms. In the second Cl site, Cl(2) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(1) atom. In the third Cl site, Cl(3) is bonded in a linear geometry to one Y(2) and one Y(3) atom. In the fourth Cl site, Cl(4) is bonded in a bent 120 degrees geometry to one Ba(1) and one Y(2) atom. In the fifth Cl site, Cl(5) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(2) atom. In the sixth Cl site, Cl(6) is bonded in a linear geometry to one Y(1) and one Y(3) atom. In the seventh Cl site, Cl(7) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(3) atom. In the eighth Cl site, Cl(8) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(2) atom. In the ninth Cl site, Cl(9) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(2) atom. In the tenth Cl site, Cl(10) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(2) atom. is represented by the CIF file [CIF]
data_Ba2Y5Cl19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.393
_cell_length_b   7.448
_cell_length_c   31.122
_cell_angle_alpha   77.180
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   2122.993
_cell_formula_units_Z   2
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  0.981  0.313  0.207  1.0
  Ba  Ba1  1  0.481  0.687  0.293  1.0
  Ba  Ba2  1  0.519  0.313  0.707  1.0
  Ba  Ba3  1  0.019  0.687  0.793  1.0
  Y  Y4  1  0.332  0.429  0.069  1.0
  Y  Y5  1  0.859  0.876  0.636  1.0
  Y  Y6  1  0.500  0.000  0.500  1.0
  Y  Y7  1  0.832  0.571  0.431  1.0
  Y  Y8  1  0.641  0.876  0.136  1.0
  Y  Y9  1  0.000  0.000  0.000  1.0
  Y  Y10  1  0.359  0.124  0.864  1.0
  Y  Y11  1  0.168  0.429  0.569  1.0
  Y  Y12  1  0.141  0.124  0.364  1.0
  Y  Y13  1  0.668  0.571  0.931  1.0
  Cl  Cl14  1  0.500  0.500  0.000  1.0
  Cl  Cl15  1  0.768  0.660  0.851  1.0
  Cl  Cl16  1  0.662  0.923  0.571  1.0
  Cl  Cl17  1  0.059  0.820  0.697  1.0
  Cl  Cl18  1  0.256  0.852  0.832  1.0
  Cl  Cl19  1  0.678  0.264  0.458  1.0
  Cl  Cl20  1  0.871  0.747  0.966  1.0
  Cl  Cl21  1  0.315  0.339  0.307  1.0
  Cl  Cl22  1  0.536  0.602  0.104  1.0
  Cl  Cl23  1  0.032  0.107  0.584  1.0
  Cl  Cl24  1  0.036  0.398  0.396  1.0
  Cl  Cl25  1  0.815  0.661  0.193  1.0
  Cl  Cl26  1  0.178  0.736  0.042  1.0
  Cl  Cl27  1  0.532  0.893  0.916  1.0
  Cl  Cl28  1  0.371  0.253  0.534  1.0
  Cl  Cl29  1  0.756  0.148  0.668  1.0
  Cl  Cl30  1  0.559  0.180  0.803  1.0
  Cl  Cl31  1  0.732  0.660  0.351  1.0
  Cl  Cl32  1  0.838  0.923  0.071  1.0
  Cl  Cl33  1  0.162  0.077  0.929  1.0
  Cl  Cl34  1  0.268  0.340  0.649  1.0
  Cl  Cl35  1  0.441  0.820  0.197  1.0
  Cl  Cl36  1  0.000  0.500  0.500  1.0
  Cl  Cl37  1  0.244  0.852  0.332  1.0
  Cl  Cl38  1  0.629  0.747  0.466  1.0
  Cl  Cl39  1  0.468  0.107  0.084  1.0
  Cl  Cl40  1  0.822  0.264  0.958  1.0
  Cl  Cl41  1  0.185  0.339  0.807  1.0
  Cl  Cl42  1  0.964  0.602  0.604  1.0
  Cl  Cl43  1  0.968  0.893  0.416  1.0
  Cl  Cl44  1  0.464  0.398  0.896  1.0
  Cl  Cl45  1  0.685  0.661  0.693  1.0
  Cl  Cl46  1  0.129  0.253  0.034  1.0
  Cl  Cl47  1  0.322  0.736  0.542  1.0
  Cl  Cl48  1  0.744  0.148  0.168  1.0
  Cl  Cl49  1  0.941  0.180  0.303  1.0
  Cl  Cl50  1  0.338  0.077  0.429  1.0
  Cl  Cl51  1  0.232  0.340  0.149  1.0
[/CIF]
.
The material described by Ba2Y5Cl19 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded to one Cl(2), one Cl(4), one Cl(5), and one Cl(8) atom to form distorted BaCl4 tetrahedra that share  a cornercorner with one Y(1)Cl6 octahedra and corners with three equivalent Y(2)Cl6 octahedra. The corner-sharing octahedral tilt angles range from 30-53°. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to one Cl(1), one Cl(10), one Cl(2), one Cl(6), one Cl(7), and one Cl(9) atom to form YCl6 octahedra that share  a cornercorner with one Y(1)Cl6 octahedra, corners with two equivalent Y(2)Cl6 octahedra, corners with two equivalent Y(3)Cl6 octahedra, and  a cornercorner with one Ba(1)Cl4 tetrahedra. The corner-sharing octahedral tilt angles range from 0-33°. In the second Y site, Y(2) is bonded to one Cl(10), one Cl(3), one Cl(4), one Cl(5), one Cl(8), and one Cl(9) atom to form YCl6 octahedra that share  a cornercorner with one Y(3)Cl6 octahedra, corners with two equivalent Y(1)Cl6 octahedra, and corners with three equivalent Ba(1)Cl4 tetrahedra. The corner-sharing octahedral tilt angles range from 9-33°. In the third Y site, Y(3) is bonded to two equivalent Cl(3), two equivalent Cl(6), and two equivalent Cl(7) atoms to form corner-sharing YCl6 octahedra. The corner-sharing octahedral tilt angles range from 9-20°. There are ten inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a linear geometry to two equivalent Y(1) atoms. In the second Cl site, Cl(2) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(1) atom. In the third Cl site, Cl(3) is bonded in a linear geometry to one Y(2) and one Y(3) atom. In the fourth Cl site, Cl(4) is bonded in a bent 120 degrees geometry to one Ba(1) and one Y(2) atom. In the fifth Cl site, Cl(5) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(2) atom. In the sixth Cl site, Cl(6) is bonded in a linear geometry to one Y(1) and one Y(3) atom. In the seventh Cl site, Cl(7) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(3) atom. In the eighth Cl site, Cl(8) is bonded in a bent 150 degrees geometry to one Ba(1) and one Y(2) atom. In the ninth Cl site, Cl(9) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(2) atom. In the tenth Cl site, Cl(10) is bonded in a bent 150 degrees geometry to one Y(1) and one Y(2) atom. is represented by the CIF file [CIF]
data_Ba2Y5Cl19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.393
_cell_length_b   7.448
_cell_length_c   31.122
_cell_angle_alpha   77.180
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   2122.993
_cell_formula_units_Z   2
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  0.981  0.313  0.207  1.0
  Ba  Ba1  1  0.481  0.687  0.293  1.0
  Ba  Ba2  1  0.519  0.313  0.707  1.0
  Ba  Ba3  1  0.019  0.687  0.793  1.0
  Y  Y4  1  0.332  0.429  0.069  1.0
  Y  Y5  1  0.859  0.876  0.636  1.0
  Y  Y6  1  0.500  0.000  0.500  1.0
  Y  Y7  1  0.832  0.571  0.431  1.0
  Y  Y8  1  0.641  0.876  0.136  1.0
  Y  Y9  1  0.000  0.000  0.000  1.0
  Y  Y10  1  0.359  0.124  0.864  1.0
  Y  Y11  1  0.168  0.429  0.569  1.0
  Y  Y12  1  0.141  0.124  0.364  1.0
  Y  Y13  1  0.668  0.571  0.931  1.0
  Cl  Cl14  1  0.500  0.500  0.000  1.0
  Cl  Cl15  1  0.768  0.660  0.851  1.0
  Cl  Cl16  1  0.662  0.923  0.571  1.0
  Cl  Cl17  1  0.059  0.820  0.697  1.0
  Cl  Cl18  1  0.256  0.852  0.832  1.0
  Cl  Cl19  1  0.678  0.264  0.458  1.0
  Cl  Cl20  1  0.871  0.747  0.966  1.0
  Cl  Cl21  1  0.315  0.339  0.307  1.0
  Cl  Cl22  1  0.536  0.602  0.104  1.0
  Cl  Cl23  1  0.032  0.107  0.584  1.0
  Cl  Cl24  1  0.036  0.398  0.396  1.0
  Cl  Cl25  1  0.815  0.661  0.193  1.0
  Cl  Cl26  1  0.178  0.736  0.042  1.0
  Cl  Cl27  1  0.532  0.893  0.916  1.0
  Cl  Cl28  1  0.371  0.253  0.534  1.0
  Cl  Cl29  1  0.756  0.148  0.668  1.0
  Cl  Cl30  1  0.559  0.180  0.803  1.0
  Cl  Cl31  1  0.732  0.660  0.351  1.0
  Cl  Cl32  1  0.838  0.923  0.071  1.0
  Cl  Cl33  1  0.162  0.077  0.929  1.0
  Cl  Cl34  1  0.268  0.340  0.649  1.0
  Cl  Cl35  1  0.441  0.820  0.197  1.0
  Cl  Cl36  1  0.000  0.500  0.500  1.0
  Cl  Cl37  1  0.244  0.852  0.332  1.0
  Cl  Cl38  1  0.629  0.747  0.466  1.0
  Cl  Cl39  1  0.468  0.107  0.084  1.0
  Cl  Cl40  1  0.822  0.264  0.958  1.0
  Cl  Cl41  1  0.185  0.339  0.807  1.0
  Cl  Cl42  1  0.964  0.602  0.604  1.0
  Cl  Cl43  1  0.968  0.893  0.416  1.0
  Cl  Cl44  1  0.464  0.398  0.896  1.0
  Cl  Cl45  1  0.685  0.661  0.693  1.0
  Cl  Cl46  1  0.129  0.253  0.034  1.0
  Cl  Cl47  1  0.322  0.736  0.542  1.0
  Cl  Cl48  1  0.744  0.148  0.168  1.0
  Cl  Cl49  1  0.941  0.180  0.303  1.0
  Cl  Cl50  1  0.338  0.077  0.429  1.0
  Cl  Cl51  1  0.232  0.340  0.149  1.0
[/CIF]
.