The material described by Cs2U3(TeO7)2 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 6-coordinate geometry to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one U(2)O6 octahedra,  an edgeedge with one U(2)O6 octahedra, and  an edgeedge with one U(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 47°. In the second U site, U(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms to form a mixture of distorted edge and corner-sharing UO6 octahedra. Te(1) is bonded in a 3-coordinate geometry to one O(2), one O(7), and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one U(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cs(1) and one U(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one U(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Cs(1), one U(1), and two equivalent Te(1) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the seventh O site, O(7) is bonded in a linear geometry to one U(1) and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cs2U3(TeO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.041
_cell_length_b   7.814
_cell_length_c   8.746
_cell_angle_alpha   111.704
_cell_angle_beta   99.776
_cell_angle_gamma   98.731
_symmetry_Int_Tables_number   1
_cell_volume   428.357
_cell_formula_units_Z   1
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
  Cs  Cs0  1  0.701  0.367  0.823  1.0
  Cs  Cs1  1  0.299  0.633  0.177  1.0
  U  U2  1  0.600  0.178  0.230  1.0
  U  U3  1  0.000  0.000  0.000  1.0
  U  U4  1  0.400  0.822  0.770  1.0
  Te  Te5  1  0.150  0.327  0.471  1.0
  Te  Te6  1  0.850  0.673  0.529  1.0
  O  O7  1  0.036  0.191  0.924  1.0
  O  O8  1  0.034  0.777  0.746  1.0
  O  O9  1  0.625  0.994  0.310  1.0
  O  O10  1  0.399  0.617  0.830  1.0
  O  O11  1  0.801  0.417  0.504  1.0
  O  O12  1  0.680  0.004  0.975  1.0
  O  O13  1  0.199  0.583  0.496  1.0
  O  O14  1  0.964  0.809  0.076  1.0
  O  O15  1  0.966  0.223  0.254  1.0
  O  O16  1  0.601  0.383  0.170  1.0
  O  O17  1  0.361  0.256  0.374  1.0
  O  O18  1  0.320  0.996  0.025  1.0
  O  O19  1  0.375  0.006  0.690  1.0
  O  O20  1  0.639  0.744  0.626  1.0
[/CIF]
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The material described by Cs2U3(TeO7)2 crystallizes in the triclinic P-1 space group. Cs(1) is bonded in a 6-coordinate geometry to one O(3), one O(5), two equivalent O(1), and two equivalent O(4) atoms. There are two inequivalent U sites. In the first U site, U(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form distorted UO7 pentagonal bipyramids that share  a cornercorner with one U(2)O6 octahedra,  an edgeedge with one U(2)O6 octahedra, and  an edgeedge with one U(1)O7 pentagonal bipyramid. The corner-sharing octahedral tilt angles are 47°. In the second U site, U(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms to form a mixture of distorted edge and corner-sharing UO6 octahedra. Te(1) is bonded in a 3-coordinate geometry to one O(2), one O(7), and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one U(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one U(1), one U(2), and one Te(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Cs(1) and one U(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Cs(1) and one U(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Cs(1), one U(1), and two equivalent Te(1) atoms. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one U(2) and two equivalent U(1) atoms. In the seventh O site, O(7) is bonded in a linear geometry to one U(1) and one Te(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cs2U3(TeO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.041
_cell_length_b   7.814
_cell_length_c   8.746
_cell_angle_alpha   111.704
_cell_angle_beta   99.776
_cell_angle_gamma   98.731
_symmetry_Int_Tables_number   1
_cell_volume   428.357
_cell_formula_units_Z   1
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
  Cs  Cs0  1  0.701  0.367  0.823  1.0
  Cs  Cs1  1  0.299  0.633  0.177  1.0
  U  U2  1  0.600  0.178  0.230  1.0
  U  U3  1  0.000  0.000  0.000  1.0
  U  U4  1  0.400  0.822  0.770  1.0
  Te  Te5  1  0.150  0.327  0.471  1.0
  Te  Te6  1  0.850  0.673  0.529  1.0
  O  O7  1  0.036  0.191  0.924  1.0
  O  O8  1  0.034  0.777  0.746  1.0
  O  O9  1  0.625  0.994  0.310  1.0
  O  O10  1  0.399  0.617  0.830  1.0
  O  O11  1  0.801  0.417  0.504  1.0
  O  O12  1  0.680  0.004  0.975  1.0
  O  O13  1  0.199  0.583  0.496  1.0
  O  O14  1  0.964  0.809  0.076  1.0
  O  O15  1  0.966  0.223  0.254  1.0
  O  O16  1  0.601  0.383  0.170  1.0
  O  O17  1  0.361  0.256  0.374  1.0
  O  O18  1  0.320  0.996  0.025  1.0
  O  O19  1  0.375  0.006  0.690  1.0
  O  O20  1  0.639  0.744  0.626  1.0
[/CIF]
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