The structure described by Ba2YCo2F11 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 7-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), one F(8), and one F(9) atom. 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 Co sites. In the first Co site, Co(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 CoF6 octahedra. The corner-sharing octahedral tilt angles are 57°. In the second Co site, Co(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 CoF6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are eleven inequivalent F sites. In the first F site, F(10) is bonded in a distorted T-shaped geometry to two equivalent Y(1) and one Co(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 Co(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 Co(1), and one Co(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 Co(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 Co(1) atom. In the sixth F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Co(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 Co(1), and one Co(2) atom. In the ninth F site, F(7) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the tenth F site, F(8) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Co(2) atom. In the eleventh F site, F(9) is bonded in a distorted tetrahedral geometry to one Ba(2), one Y(1), one Co(1), and one Co(2) atom. is represented by the CIF file [CIF]
data_Ba2YCo2F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.923
_cell_length_b   7.923
_cell_length_c   13.610
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   739.818
_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  0.886  0.852  0.664  1.0
  Ba  Ba1  1  0.501  0.191  0.821  1.0
  Ba  Ba2  1  0.966  0.114  0.997  1.0
  Ba  Ba3  1  0.809  0.310  0.488  1.0
  Ba  Ba4  1  0.690  0.499  0.155  1.0
  Ba  Ba5  1  0.148  0.034  0.330  1.0
  Y  Y6  1  0.464  0.674  0.894  1.0
  Y  Y7  1  0.210  0.536  0.227  1.0
  Y  Y8  1  0.326  0.790  0.561  1.0
  Co  Co9  1  0.961  0.660  0.883  1.0
  Co  Co10  1  0.115  0.404  0.722  1.0
  Co  Co11  1  0.596  0.711  0.388  1.0
  Co  Co12  1  0.699  0.039  0.217  1.0
  Co  Co13  1  0.289  0.885  0.055  1.0
  Co  Co14  1  0.340  0.301  0.550  1.0
  F  F15  1  0.001  0.764  0.025  1.0
  F  F16  1  0.836  0.387  0.931  1.0
  F  F17  1  0.764  0.999  0.359  1.0
  F  F18  1  0.416  0.083  0.490  1.0
  F  F19  1  0.902  0.970  0.178  1.0
  F  F20  1  0.297  0.323  0.193  1.0
  F  F21  1  0.917  0.333  0.157  1.0
  F  F22  1  0.677  0.974  0.859  1.0
  F  F23  1  0.068  0.098  0.511  1.0
  F  F24  1  0.578  0.998  0.079  1.0
  F  F25  1  0.667  0.584  0.823  1.0
  F  F26  1  0.236  0.236  0.692  1.0
  F  F27  1  0.643  0.682  0.011  1.0
  F  F28  1  0.347  0.151  0.009  1.0
  F  F29  1  0.040  0.357  0.345  1.0
  F  F30  1  0.613  0.450  0.598  1.0
  F  F31  1  0.283  0.815  0.902  1.0
  F  F32  1  0.420  0.422  0.412  1.0
  F  F33  1  0.332  0.726  0.391  1.0
  F  F34  1  0.318  0.960  0.678  1.0
  F  F35  1  0.394  0.668  0.724  1.0
  F  F36  1  0.849  0.196  0.675  1.0
  F  F37  1  0.804  0.653  0.342  1.0
  F  F38  1  0.532  0.717  0.235  1.0
  F  F39  1  0.002  0.580  0.746  1.0
  F  F40  1  0.030  0.932  0.844  1.0
  F  F41  1  0.550  0.164  0.264  1.0
  F  F42  1  0.211  0.381  0.865  1.0
  F  F43  1  0.170  0.789  0.199  1.0
  F  F44  1  0.274  0.606  0.058  1.0
  F  F45  1  0.026  0.703  0.526  1.0
  F  F46  1  0.185  0.468  0.569  1.0
  F  F47  1  0.619  0.830  0.532  1.0
[/CIF]
.
The structure described by Ba2YCo2F11 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 7-coordinate geometry to one F(1), one F(2), one F(3), one F(5), one F(7), one F(8), and one F(9) atom. 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 Co sites. In the first Co site, Co(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 CoF6 octahedra. The corner-sharing octahedral tilt angles are 57°. In the second Co site, Co(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 CoF6 octahedra. The corner-sharing octahedral tilt angles are 57°. There are eleven inequivalent F sites. In the first F site, F(10) is bonded in a distorted T-shaped geometry to two equivalent Y(1) and one Co(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 Co(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 Co(1), and one Co(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 Co(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 Co(1) atom. In the sixth F site, F(4) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Co(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 Co(1), and one Co(2) atom. In the ninth F site, F(7) is bonded in a distorted bent 150 degrees geometry to one Ba(1), one Ba(2), and one Y(1) atom. In the tenth F site, F(8) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one Co(2) atom. In the eleventh F site, F(9) is bonded in a distorted tetrahedral geometry to one Ba(2), one Y(1), one Co(1), and one Co(2) atom. is represented by the CIF file [CIF]
data_Ba2YCo2F11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.923
_cell_length_b   7.923
_cell_length_c   13.610
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   739.818
_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  0.886  0.852  0.664  1.0
  Ba  Ba1  1  0.501  0.191  0.821  1.0
  Ba  Ba2  1  0.966  0.114  0.997  1.0
  Ba  Ba3  1  0.809  0.310  0.488  1.0
  Ba  Ba4  1  0.690  0.499  0.155  1.0
  Ba  Ba5  1  0.148  0.034  0.330  1.0
  Y  Y6  1  0.464  0.674  0.894  1.0
  Y  Y7  1  0.210  0.536  0.227  1.0
  Y  Y8  1  0.326  0.790  0.561  1.0
  Co  Co9  1  0.961  0.660  0.883  1.0
  Co  Co10  1  0.115  0.404  0.722  1.0
  Co  Co11  1  0.596  0.711  0.388  1.0
  Co  Co12  1  0.699  0.039  0.217  1.0
  Co  Co13  1  0.289  0.885  0.055  1.0
  Co  Co14  1  0.340  0.301  0.550  1.0
  F  F15  1  0.001  0.764  0.025  1.0
  F  F16  1  0.836  0.387  0.931  1.0
  F  F17  1  0.764  0.999  0.359  1.0
  F  F18  1  0.416  0.083  0.490  1.0
  F  F19  1  0.902  0.970  0.178  1.0
  F  F20  1  0.297  0.323  0.193  1.0
  F  F21  1  0.917  0.333  0.157  1.0
  F  F22  1  0.677  0.974  0.859  1.0
  F  F23  1  0.068  0.098  0.511  1.0
  F  F24  1  0.578  0.998  0.079  1.0
  F  F25  1  0.667  0.584  0.823  1.0
  F  F26  1  0.236  0.236  0.692  1.0
  F  F27  1  0.643  0.682  0.011  1.0
  F  F28  1  0.347  0.151  0.009  1.0
  F  F29  1  0.040  0.357  0.345  1.0
  F  F30  1  0.613  0.450  0.598  1.0
  F  F31  1  0.283  0.815  0.902  1.0
  F  F32  1  0.420  0.422  0.412  1.0
  F  F33  1  0.332  0.726  0.391  1.0
  F  F34  1  0.318  0.960  0.678  1.0
  F  F35  1  0.394  0.668  0.724  1.0
  F  F36  1  0.849  0.196  0.675  1.0
  F  F37  1  0.804  0.653  0.342  1.0
  F  F38  1  0.532  0.717  0.235  1.0
  F  F39  1  0.002  0.580  0.746  1.0
  F  F40  1  0.030  0.932  0.844  1.0
  F  F41  1  0.550  0.164  0.264  1.0
  F  F42  1  0.211  0.381  0.865  1.0
  F  F43  1  0.170  0.789  0.199  1.0
  F  F44  1  0.274  0.606  0.058  1.0
  F  F45  1  0.026  0.703  0.526  1.0
  F  F46  1  0.185  0.468  0.569  1.0
  F  F47  1  0.619  0.830  0.532  1.0
[/CIF]
.