The material structure described by UAl4B3O14 crystallizes in the monoclinic P2_1/m space group. U(1) is bonded in a 2-coordinate geometry to one O(10), one O(2), two equivalent O(4), and two equivalent O(7) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(6), one O(8), and two equivalent O(9) atoms to form distorted AlO5 tetrahedra that share corners with two equivalent Al(4)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and  an edgeedge with one Al(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 50°. In the second Al site, Al(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(9) atoms to form AlO6 octahedra that share corners with two equivalent Al(3)O5 trigonal bipyramids, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(1)O5 tetrahedra. In the third Al site, Al(3) is bonded to one O(1), one O(11), one O(8), and two equivalent O(4) atoms to form AlO5 trigonal bipyramids that share corners with two equivalent Al(2)O6 octahedra and  an edgeedge with one Al(1)O5 tetrahedra. The corner-sharing octahedral tilt angles are 48°. In the fourth Al site, Al(4) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form AlO6 octahedra that share corners with two equivalent Al(1)O5 tetrahedra and edges with two equivalent Al(4)O6 octahedra. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(3) and two equivalent O(4) atoms. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(5) and two equivalent O(9) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(11) and two equivalent O(7) atoms. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Al(1), one Al(3), and two equivalent Al(2) atoms to form distorted corner-sharing OAl4 trigonal pyramids. In the second O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Al(2) and one B(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(1), one Al(3), and one B(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to two equivalent Al(4) and one B(2) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Al(1) and two equivalent Al(4) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one Al(4), and one B(3) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Al(1) and one Al(3) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Al(1), one Al(2), and one B(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one U(1) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Al(3) and one B(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_UAl4B3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.651
_cell_length_b   9.654
_cell_length_c   10.685
_cell_angle_alpha   67.185
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   537.266
_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
  U  U0  1  0.250  0.106  0.226  1.0
  U  U1  1  0.750  0.894  0.774  1.0
  Al  Al2  1  0.250  0.414  0.768  1.0
  Al  Al3  1  0.750  0.586  0.232  1.0
  Al  Al4  1  0.000  0.500  0.500  1.0
  Al  Al5  1  0.500  0.500  0.500  1.0
  Al  Al6  1  0.750  0.860  0.328  1.0
  Al  Al7  1  0.250  0.140  0.672  1.0
  Al  Al8  1  0.000  0.500  0.000  1.0
  Al  Al9  1  0.500  0.500  0.000  1.0
  B  B10  1  0.250  0.792  0.417  1.0
  B  B11  1  0.750  0.208  0.583  1.0
  B  B12  1  0.750  0.492  0.751  1.0
  B  B13  1  0.250  0.508  0.249  1.0
  B  B14  1  0.250  0.786  0.857  1.0
  B  B15  1  0.750  0.214  0.143  1.0
  O  O16  1  0.750  0.640  0.430  1.0
  O  O17  1  0.250  0.360  0.570  1.0
  O  O18  1  0.250  0.022  0.102  1.0
  O  O19  1  0.750  0.978  0.898  1.0
  O  O20  1  0.250  0.638  0.475  1.0
  O  O21  1  0.750  0.362  0.525  1.0
  O  O22  1  0.048  0.877  0.382  1.0
  O  O23  1  0.548  0.123  0.618  1.0
  O  O24  1  0.952  0.123  0.618  1.0
  O  O25  1  0.452  0.877  0.382  1.0
  O  O26  1  0.250  0.511  0.121  1.0
  O  O27  1  0.750  0.489  0.879  1.0
  O  O28  1  0.250  0.460  0.909  1.0
  O  O29  1  0.750  0.540  0.091  1.0
  O  O30  1  0.036  0.714  0.895  1.0
  O  O31  1  0.536  0.286  0.105  1.0
  O  O32  1  0.964  0.286  0.105  1.0
  O  O33  1  0.464  0.714  0.895  1.0
  O  O34  1  0.250  0.221  0.798  1.0
  O  O35  1  0.750  0.779  0.202  1.0
  O  O36  1  0.963  0.489  0.685  1.0
  O  O37  1  0.463  0.511  0.315  1.0
  O  O38  1  0.037  0.511  0.315  1.0
  O  O39  1  0.537  0.489  0.685  1.0
  O  O40  1  0.250  0.183  0.355  1.0
  O  O41  1  0.750  0.817  0.645  1.0
  O  O42  1  0.750  0.064  0.229  1.0
  O  O43  1  0.250  0.936  0.771  1.0
[/CIF]
.
The material structure described by UAl4B3O14 crystallizes in the monoclinic P2_1/m space group. U(1) is bonded in a 2-coordinate geometry to one O(10), one O(2), two equivalent O(4), and two equivalent O(7) atoms. There are four inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(1), one O(6), one O(8), and two equivalent O(9) atoms to form distorted AlO5 tetrahedra that share corners with two equivalent Al(4)O6 octahedra, edges with two equivalent Al(2)O6 octahedra, and  an edgeedge with one Al(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 50°. In the second Al site, Al(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(9) atoms to form AlO6 octahedra that share corners with two equivalent Al(3)O5 trigonal bipyramids, edges with two equivalent Al(2)O6 octahedra, and edges with two equivalent Al(1)O5 tetrahedra. In the third Al site, Al(3) is bonded to one O(1), one O(11), one O(8), and two equivalent O(4) atoms to form AlO5 trigonal bipyramids that share corners with two equivalent Al(2)O6 octahedra and  an edgeedge with one Al(1)O5 tetrahedra. The corner-sharing octahedral tilt angles are 48°. In the fourth Al site, Al(4) is bonded to two equivalent O(5), two equivalent O(6), and two equivalent O(7) atoms to form AlO6 octahedra that share corners with two equivalent Al(1)O5 tetrahedra and edges with two equivalent Al(4)O6 octahedra. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(3) and two equivalent O(4) atoms. In the second B site, B(2) is bonded in a trigonal planar geometry to one O(5) and two equivalent O(9) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(11) and two equivalent O(7) atoms. There are eleven inequivalent O sites. In the first O site, O(1) is bonded to one Al(1), one Al(3), and two equivalent Al(2) atoms to form distorted corner-sharing OAl4 trigonal pyramids. In the second O site, O(2) is bonded in a single-bond geometry to one U(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent Al(2) and one B(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one U(1), one Al(3), and one B(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to two equivalent Al(4) and one B(2) atom. In the sixth O site, O(6) is bonded in a trigonal planar geometry to one Al(1) and two equivalent Al(4) atoms. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one U(1), one Al(4), and one B(3) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Al(1) and one Al(3) atom. In the ninth O site, O(9) is bonded in a trigonal planar geometry to one Al(1), one Al(2), and one B(2) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one U(1) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one Al(3) and one B(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_UAl4B3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.651
_cell_length_b   9.654
_cell_length_c   10.685
_cell_angle_alpha   67.185
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   537.266
_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
  U  U0  1  0.250  0.106  0.226  1.0
  U  U1  1  0.750  0.894  0.774  1.0
  Al  Al2  1  0.250  0.414  0.768  1.0
  Al  Al3  1  0.750  0.586  0.232  1.0
  Al  Al4  1  0.000  0.500  0.500  1.0
  Al  Al5  1  0.500  0.500  0.500  1.0
  Al  Al6  1  0.750  0.860  0.328  1.0
  Al  Al7  1  0.250  0.140  0.672  1.0
  Al  Al8  1  0.000  0.500  0.000  1.0
  Al  Al9  1  0.500  0.500  0.000  1.0
  B  B10  1  0.250  0.792  0.417  1.0
  B  B11  1  0.750  0.208  0.583  1.0
  B  B12  1  0.750  0.492  0.751  1.0
  B  B13  1  0.250  0.508  0.249  1.0
  B  B14  1  0.250  0.786  0.857  1.0
  B  B15  1  0.750  0.214  0.143  1.0
  O  O16  1  0.750  0.640  0.430  1.0
  O  O17  1  0.250  0.360  0.570  1.0
  O  O18  1  0.250  0.022  0.102  1.0
  O  O19  1  0.750  0.978  0.898  1.0
  O  O20  1  0.250  0.638  0.475  1.0
  O  O21  1  0.750  0.362  0.525  1.0
  O  O22  1  0.048  0.877  0.382  1.0
  O  O23  1  0.548  0.123  0.618  1.0
  O  O24  1  0.952  0.123  0.618  1.0
  O  O25  1  0.452  0.877  0.382  1.0
  O  O26  1  0.250  0.511  0.121  1.0
  O  O27  1  0.750  0.489  0.879  1.0
  O  O28  1  0.250  0.460  0.909  1.0
  O  O29  1  0.750  0.540  0.091  1.0
  O  O30  1  0.036  0.714  0.895  1.0
  O  O31  1  0.536  0.286  0.105  1.0
  O  O32  1  0.964  0.286  0.105  1.0
  O  O33  1  0.464  0.714  0.895  1.0
  O  O34  1  0.250  0.221  0.798  1.0
  O  O35  1  0.750  0.779  0.202  1.0
  O  O36  1  0.963  0.489  0.685  1.0
  O  O37  1  0.463  0.511  0.315  1.0
  O  O38  1  0.037  0.511  0.315  1.0
  O  O39  1  0.537  0.489  0.685  1.0
  O  O40  1  0.250  0.183  0.355  1.0
  O  O41  1  0.750  0.817  0.645  1.0
  O  O42  1  0.750  0.064  0.229  1.0
  O  O43  1  0.250  0.936  0.771  1.0
[/CIF]
.