The compound described by Ba2YV2F11 crystallizes in the trigonal P3_2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one F(1), one F(11), one F(2), one F(3), one F(5), one F(6), one F(7), one F(8), and two equivalent F(4) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), one F(9), and two equivalent F(8) atoms. Y(1) is bonded in a 7-coordinate geometry to one F(11), one F(3), one F(5), one F(7), one F(9), and two equivalent F(10) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one F(1), one F(2), one F(3), one F(4), one F(6), and one F(9) atom to form a mixture of corner and edge-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 63°. In the second V site, V(2) is bonded to one F(1), one F(10), one F(11), one F(6), one F(8), and one F(9) atom to form a mixture of corner and edge-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 63°. There are eleven inequivalent F sites. In the first F site, F(10) is bonded in a distorted water-like geometry to two equivalent Y(1) and one V(2) atom. In the second F site, F(11) is bonded in a distorted trigonal planar geometry to one Ba(1), one Y(1), and one V(2) atom. In the third F site, F(1) is bonded in a distorted water-like geometry to one Ba(1), one Ba(2), one V(1), and one V(2) atom. In the fourth F site, F(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one V(1) atom. In the fifth F site, F(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Y(1), and one V(1) atom. In the sixth F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one V(1) atom. In the seventh F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the eighth F site, F(6) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one V(1), and one V(2) atom. In the ninth F site, F(7) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the tenth F site, F(8) is bonded to one Ba(1), two equivalent Ba(2), and one V(2) atom to form distorted FBa3V tetrahedra that share  a cornercorner with one F(9)BaYV2 tetrahedra, corners with two equivalent F(8)Ba3V tetrahedra, and  an edgeedge with one F(9)BaYV2 tetrahedra. In the eleventh F site, F(9) is bonded to one Ba(2), one Y(1), one V(1), and one V(2) atom to form a mixture of distorted corner and edge-sharing FBaYV2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2YV2F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.954
_cell_length_b   7.954
_cell_length_c   13.808
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   756.644
_cell_formula_units_Z   3
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  0.558  0.195  0.664  1.0
  Ba  Ba1  1  0.195  0.523  0.813  1.0
  Ba  Ba2  1  0.636  0.442  0.997  1.0
  Ba  Ba3  1  0.477  0.673  0.480  1.0
  Ba  Ba4  1  0.327  0.805  0.146  1.0
  Ba  Ba5  1  0.805  0.364  0.331  1.0
  Y  Y6  1  0.132  1.000  0.893  1.0
  Y  Y7  1  0.867  0.868  0.226  1.0
  Y  Y8  1  0.000  0.133  0.559  1.0
  V  V9  1  0.634  0.995  0.882  1.0
  V  V10  1  0.784  0.739  0.721  1.0
  V  V11  1  0.261  0.044  0.388  1.0
  V  V12  1  0.361  0.366  0.215  1.0
  V  V13  1  0.956  0.216  0.054  1.0
  V  V14  1  0.005  0.639  0.549  1.0
  F  F15  1  0.659  0.086  0.027  1.0
  F  F16  1  0.510  0.704  0.928  1.0
  F  F17  1  0.427  0.341  0.360  1.0
  F  F18  1  0.093  0.430  0.500  1.0
  F  F19  1  0.567  0.290  0.177  1.0
  F  F20  1  0.945  0.650  0.191  1.0
  F  F21  1  0.570  0.663  0.166  1.0
  F  F22  1  0.350  0.295  0.858  1.0
  F  F23  1  0.723  0.433  0.510  1.0
  F  F24  1  0.258  0.342  0.073  1.0
  F  F25  1  0.337  0.907  0.833  1.0
  F  F26  1  0.914  0.573  0.693  1.0
  F  F27  1  0.299  0.017  0.015  1.0
  F  F28  1  0.022  0.498  0.011  1.0
  F  F29  1  0.718  0.701  0.348  1.0
  F  F30  1  0.296  0.806  0.595  1.0
  F  F31  1  0.958  0.150  0.902  1.0
  F  F32  1  0.085  0.742  0.406  1.0
  F  F33  1  0.005  0.076  0.395  1.0
  F  F34  1  0.983  0.282  0.681  1.0
  F  F35  1  0.071  0.995  0.728  1.0
  F  F36  1  0.502  0.523  0.677  1.0
  F  F37  1  0.477  0.978  0.344  1.0
  F  F38  1  0.192  0.042  0.236  1.0
  F  F39  1  0.658  0.915  0.740  1.0
  F  F40  1  0.710  0.277  0.843  1.0
  F  F41  1  0.194  0.490  0.261  1.0
  F  F42  1  0.868  0.717  0.868  1.0
  F  F43  1  0.850  0.132  0.202  1.0
  F  F44  1  0.924  0.929  0.062  1.0
  F  F45  1  0.705  0.055  0.524  1.0
  F  F46  1  0.850  0.808  0.569  1.0
  F  F47  1  0.283  0.150  0.535  1.0
[/CIF]
.
The compound described by Ba2YV2F11 crystallizes in the trigonal P3_2 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one F(1), one F(11), one F(2), one F(3), one F(5), one F(6), one F(7), one F(8), and two equivalent F(4) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), one F(9), and two equivalent F(8) atoms. Y(1) is bonded in a 7-coordinate geometry to one F(11), one F(3), one F(5), one F(7), one F(9), and two equivalent F(10) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one F(1), one F(2), one F(3), one F(4), one F(6), and one F(9) atom to form a mixture of corner and edge-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 63°. In the second V site, V(2) is bonded to one F(1), one F(10), one F(11), one F(6), one F(8), and one F(9) atom to form a mixture of corner and edge-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 63°. There are eleven inequivalent F sites. In the first F site, F(10) is bonded in a distorted water-like geometry to two equivalent Y(1) and one V(2) atom. In the second F site, F(11) is bonded in a distorted trigonal planar geometry to one Ba(1), one Y(1), and one V(2) atom. In the third F site, F(1) is bonded in a distorted water-like geometry to one Ba(1), one Ba(2), one V(1), and one V(2) atom. In the fourth F site, F(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one V(1) atom. In the fifth F site, F(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Y(1), and one V(1) atom. In the sixth F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one V(1) atom. In the seventh F site, F(5) is bonded in a distorted trigonal non-coplanar geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the eighth F site, F(6) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one V(1), and one V(2) atom. In the ninth F site, F(7) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the tenth F site, F(8) is bonded to one Ba(1), two equivalent Ba(2), and one V(2) atom to form distorted FBa3V tetrahedra that share  a cornercorner with one F(9)BaYV2 tetrahedra, corners with two equivalent F(8)Ba3V tetrahedra, and  an edgeedge with one F(9)BaYV2 tetrahedra. In the eleventh F site, F(9) is bonded to one Ba(2), one Y(1), one V(1), and one V(2) atom to form a mixture of distorted corner and edge-sharing FBaYV2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2YV2F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.954
_cell_length_b   7.954
_cell_length_c   13.808
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   756.644
_cell_formula_units_Z   3
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  0.558  0.195  0.664  1.0
  Ba  Ba1  1  0.195  0.523  0.813  1.0
  Ba  Ba2  1  0.636  0.442  0.997  1.0
  Ba  Ba3  1  0.477  0.673  0.480  1.0
  Ba  Ba4  1  0.327  0.805  0.146  1.0
  Ba  Ba5  1  0.805  0.364  0.331  1.0
  Y  Y6  1  0.132  1.000  0.893  1.0
  Y  Y7  1  0.867  0.868  0.226  1.0
  Y  Y8  1  0.000  0.133  0.559  1.0
  V  V9  1  0.634  0.995  0.882  1.0
  V  V10  1  0.784  0.739  0.721  1.0
  V  V11  1  0.261  0.044  0.388  1.0
  V  V12  1  0.361  0.366  0.215  1.0
  V  V13  1  0.956  0.216  0.054  1.0
  V  V14  1  0.005  0.639  0.549  1.0
  F  F15  1  0.659  0.086  0.027  1.0
  F  F16  1  0.510  0.704  0.928  1.0
  F  F17  1  0.427  0.341  0.360  1.0
  F  F18  1  0.093  0.430  0.500  1.0
  F  F19  1  0.567  0.290  0.177  1.0
  F  F20  1  0.945  0.650  0.191  1.0
  F  F21  1  0.570  0.663  0.166  1.0
  F  F22  1  0.350  0.295  0.858  1.0
  F  F23  1  0.723  0.433  0.510  1.0
  F  F24  1  0.258  0.342  0.073  1.0
  F  F25  1  0.337  0.907  0.833  1.0
  F  F26  1  0.914  0.573  0.693  1.0
  F  F27  1  0.299  0.017  0.015  1.0
  F  F28  1  0.022  0.498  0.011  1.0
  F  F29  1  0.718  0.701  0.348  1.0
  F  F30  1  0.296  0.806  0.595  1.0
  F  F31  1  0.958  0.150  0.902  1.0
  F  F32  1  0.085  0.742  0.406  1.0
  F  F33  1  0.005  0.076  0.395  1.0
  F  F34  1  0.983  0.282  0.681  1.0
  F  F35  1  0.071  0.995  0.728  1.0
  F  F36  1  0.502  0.523  0.677  1.0
  F  F37  1  0.477  0.978  0.344  1.0
  F  F38  1  0.192  0.042  0.236  1.0
  F  F39  1  0.658  0.915  0.740  1.0
  F  F40  1  0.710  0.277  0.843  1.0
  F  F41  1  0.194  0.490  0.261  1.0
  F  F42  1  0.868  0.717  0.868  1.0
  F  F43  1  0.850  0.132  0.202  1.0
  F  F44  1  0.924  0.929  0.062  1.0
  F  F45  1  0.705  0.055  0.524  1.0
  F  F46  1  0.850  0.808  0.569  1.0
  F  F47  1  0.283  0.150  0.535  1.0
[/CIF]
.