The compound described by BaU2V2O12 crystallizes in the monoclinic Pc space group. Ba(1) is bonded in a 11-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(6), one O(8), one O(9), two equivalent O(5), and two equivalent O(7) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), one O(5), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(2)O7 pentagonal bipyramids,  a cornercorner with one V(1)O5 trigonal bipyramid,  a cornercorner with one V(2)O5 trigonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid,  an edgeedge with one V(1)O5 trigonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. In the second U site, U(2) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), one O(6), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O7 pentagonal bipyramids,  a cornercorner with one V(1)O5 trigonal bipyramid,  a cornercorner with one V(2)O5 trigonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one V(1)O5 trigonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(11), one O(3), one O(4), one O(7), and one O(9) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one U(1)O7 pentagonal bipyramid,  a cornercorner with one U(2)O7 pentagonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. In the second V site, V(2) is bonded to one O(10), one O(12), one O(3), one O(4), and one O(8) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one U(1)O7 pentagonal bipyramid,  a cornercorner with one U(2)O7 pentagonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one V(1)O5 trigonal bipyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(1) and one U(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1) and one U(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one U(1), one V(1), and one V(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one U(2), one V(1), and one V(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Ba(1) and one U(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one V(1) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Ba(1) and one V(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(1), one U(1), one U(2), and one V(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one U(2), and one V(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ba(1), one U(1), one U(2), and one V(1) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one V(2) atom. is represented by the CIF file [CIF]
data_BaU2V2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.342
_cell_length_b   6.666
_cell_length_c   10.507
_cell_angle_alpha   76.126
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   567.258
_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  0.966  0.465  0.841  1.0
  Ba  Ba1  1  0.034  0.465  0.341  1.0
  U  U2  1  0.767  0.019  0.680  1.0
  U  U3  1  0.272  0.986  0.821  1.0
  U  U4  1  0.728  0.986  0.321  1.0
  U  U5  1  0.233  0.019  0.180  1.0
  V  V6  1  0.099  0.881  0.555  1.0
  V  V7  1  0.606  0.115  0.949  1.0
  V  V8  1  0.394  0.115  0.449  1.0
  V  V9  1  0.901  0.881  0.055  1.0
  O  O10  1  0.728  0.742  0.725  1.0
  O  O11  1  0.216  0.256  0.763  1.0
  O  O12  1  0.784  0.256  0.263  1.0
  O  O13  1  0.272  0.742  0.225  1.0
  O  O14  1  0.185  0.032  0.393  1.0
  O  O15  1  0.695  0.956  0.106  1.0
  O  O16  1  0.305  0.956  0.606  1.0
  O  O17  1  0.815  0.032  0.893  1.0
  O  O18  1  0.833  0.289  0.640  1.0
  O  O19  1  0.296  0.710  0.880  1.0
  O  O20  1  0.704  0.710  0.380  1.0
  O  O21  1  0.167  0.289  0.140  1.0
  O  O22  1  0.092  0.636  0.555  1.0
  O  O23  1  0.646  0.356  0.938  1.0
  O  O24  1  0.354  0.356  0.438  1.0
  O  O25  1  0.908  0.636  0.055  1.0
  O  O26  1  0.037  0.895  0.720  1.0
  O  O27  1  0.541  0.077  0.789  1.0
  O  O28  1  0.459  0.077  0.289  1.0
  O  O29  1  0.963  0.895  0.220  1.0
  O  O30  1  0.909  0.990  0.493  1.0
  O  O31  1  0.403  0.060  0.005  1.0
  O  O32  1  0.597  0.060  0.505  1.0
  O  O33  1  0.091  0.990  0.993  1.0
[/CIF]
.
The compound described by BaU2V2O12 crystallizes in the monoclinic Pc space group. Ba(1) is bonded in a 11-coordinate geometry to one O(1), one O(11), one O(2), one O(3), one O(6), one O(8), one O(9), two equivalent O(5), and two equivalent O(7) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(1), one O(10), one O(11), one O(12), one O(3), one O(5), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(2)O7 pentagonal bipyramids,  a cornercorner with one V(1)O5 trigonal bipyramid,  a cornercorner with one V(2)O5 trigonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid,  an edgeedge with one V(1)O5 trigonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. In the second U site, U(2) is bonded to one O(10), one O(11), one O(12), one O(2), one O(4), one O(6), and one O(9) atom to form distorted UO7 pentagonal bipyramids that share corners with two equivalent U(1)O7 pentagonal bipyramids,  a cornercorner with one V(1)O5 trigonal bipyramid,  a cornercorner with one V(2)O5 trigonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one V(1)O5 trigonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(11), one O(3), one O(4), one O(7), and one O(9) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one U(1)O7 pentagonal bipyramid,  a cornercorner with one U(2)O7 pentagonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one V(2)O5 trigonal bipyramid. In the second V site, V(2) is bonded to one O(10), one O(12), one O(3), one O(4), and one O(8) atom to form distorted VO5 trigonal bipyramids that share  a cornercorner with one U(1)O7 pentagonal bipyramid,  a cornercorner with one U(2)O7 pentagonal bipyramid,  an edgeedge with one U(1)O7 pentagonal bipyramid,  an edgeedge with one U(2)O7 pentagonal bipyramid, and  an edgeedge with one V(1)O5 trigonal bipyramid. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(1) and one U(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Ba(1) and one U(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Ba(1), one U(1), one V(1), and one V(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one U(2), one V(1), and one V(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one U(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Ba(1) and one U(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to two equivalent Ba(1) and one V(1) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one Ba(1) and one V(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(1), one U(1), one U(2), and one V(1) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one U(1), one U(2), and one V(2) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Ba(1), one U(1), one U(2), and one V(1) atom. In the twelfth O site, O(12) is bonded in a 3-coordinate geometry to one U(1), one U(2), and one V(2) atom. is represented by the CIF file [CIF]
data_BaU2V2O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.342
_cell_length_b   6.666
_cell_length_c   10.507
_cell_angle_alpha   76.126
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   567.258
_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  0.966  0.465  0.841  1.0
  Ba  Ba1  1  0.034  0.465  0.341  1.0
  U  U2  1  0.767  0.019  0.680  1.0
  U  U3  1  0.272  0.986  0.821  1.0
  U  U4  1  0.728  0.986  0.321  1.0
  U  U5  1  0.233  0.019  0.180  1.0
  V  V6  1  0.099  0.881  0.555  1.0
  V  V7  1  0.606  0.115  0.949  1.0
  V  V8  1  0.394  0.115  0.449  1.0
  V  V9  1  0.901  0.881  0.055  1.0
  O  O10  1  0.728  0.742  0.725  1.0
  O  O11  1  0.216  0.256  0.763  1.0
  O  O12  1  0.784  0.256  0.263  1.0
  O  O13  1  0.272  0.742  0.225  1.0
  O  O14  1  0.185  0.032  0.393  1.0
  O  O15  1  0.695  0.956  0.106  1.0
  O  O16  1  0.305  0.956  0.606  1.0
  O  O17  1  0.815  0.032  0.893  1.0
  O  O18  1  0.833  0.289  0.640  1.0
  O  O19  1  0.296  0.710  0.880  1.0
  O  O20  1  0.704  0.710  0.380  1.0
  O  O21  1  0.167  0.289  0.140  1.0
  O  O22  1  0.092  0.636  0.555  1.0
  O  O23  1  0.646  0.356  0.938  1.0
  O  O24  1  0.354  0.356  0.438  1.0
  O  O25  1  0.908  0.636  0.055  1.0
  O  O26  1  0.037  0.895  0.720  1.0
  O  O27  1  0.541  0.077  0.789  1.0
  O  O28  1  0.459  0.077  0.289  1.0
  O  O29  1  0.963  0.895  0.220  1.0
  O  O30  1  0.909  0.990  0.493  1.0
  O  O31  1  0.403  0.060  0.005  1.0
  O  O32  1  0.597  0.060  0.505  1.0
  O  O33  1  0.091  0.990  0.993  1.0
[/CIF]
.