The material described by Cr4AgTl3O14 crystallizes in the monoclinic C2/c space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share  a cornercorner with one Ag(1)O6 octahedra and  a cornercorner with one Cr(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. In the second Cr site, Cr(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CrO4 tetrahedra that share corners with two equivalent Ag(1)O6 octahedra and  a cornercorner with one Cr(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-54°. Ag(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form AgO6 octahedra that share corners with two equivalent Cr(1)O4 tetrahedra and corners with four equivalent Cr(2)O4 tetrahedra. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted single-bond geometry to one O(4) atom. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one Ag(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cr(1) and one Tl(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cr(1) and one Tl(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cr(2), one Ag(1), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Cr(2) and one Ag(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Cr(2) atom. is represented by the CIF card [CIF]
data_Tl3Cr4AgO14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.558
_cell_length_b   7.558
_cell_length_c   13.802
_cell_angle_alpha   78.013
_cell_angle_beta   78.013
_cell_angle_gamma   90.339
_symmetry_Int_Tables_number   1
_cell_volume   753.359
_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
  Tl  Tl0  1  0.622  0.248  0.502  1.0
  Tl  Tl1  1  0.752  0.378  0.998  1.0
  Tl  Tl2  1  0.378  0.752  0.498  1.0
  Tl  Tl3  1  0.248  0.622  0.002  1.0
  Tl  Tl4  1  0.032  0.968  0.250  1.0
  Tl  Tl5  1  0.968  0.032  0.750  1.0
  Cr  Cr6  1  0.868  0.726  0.547  1.0
  Cr  Cr7  1  0.274  0.132  0.953  1.0
  Cr  Cr8  1  0.132  0.274  0.453  1.0
  Cr  Cr9  1  0.726  0.868  0.047  1.0
  Cr  Cr10  1  0.949  0.467  0.256  1.0
  Cr  Cr11  1  0.533  0.051  0.244  1.0
  Cr  Cr12  1  0.051  0.533  0.744  1.0
  Cr  Cr13  1  0.467  0.949  0.756  1.0
  Ag  Ag14  1  0.445  0.555  0.250  1.0
  Ag  Ag15  1  0.555  0.445  0.750  1.0
  O  O16  1  0.008  0.700  0.640  1.0
  O  O17  1  0.300  0.992  0.860  1.0
  O  O18  1  0.992  0.300  0.360  1.0
  O  O19  1  0.700  0.008  0.140  1.0
  O  O20  1  0.698  0.571  0.584  1.0
  O  O21  1  0.429  0.302  0.916  1.0
  O  O22  1  0.302  0.429  0.416  1.0
  O  O23  1  0.571  0.698  0.084  1.0
  O  O24  1  0.994  0.708  0.439  1.0
  O  O25  1  0.292  0.006  0.061  1.0
  O  O26  1  0.006  0.292  0.561  1.0
  O  O27  1  0.708  0.994  0.939  1.0
  O  O28  1  0.787  0.927  0.536  1.0
  O  O29  1  0.073  0.213  0.964  1.0
  O  O30  1  0.213  0.073  0.464  1.0
  O  O31  1  0.927  0.787  0.036  1.0
  O  O32  1  0.124  0.615  0.220  1.0
  O  O33  1  0.385  0.876  0.280  1.0
  O  O34  1  0.876  0.385  0.780  1.0
  O  O35  1  0.615  0.124  0.720  1.0
  O  O36  1  0.759  0.564  0.290  1.0
  O  O37  1  0.436  0.241  0.210  1.0
  O  O38  1  0.241  0.436  0.710  1.0
  O  O39  1  0.564  0.759  0.790  1.0
  O  O40  1  0.939  0.367  0.163  1.0
  O  O41  1  0.633  0.061  0.337  1.0
  O  O42  1  0.061  0.633  0.837  1.0
  O  O43  1  0.367  0.939  0.663  1.0
[/CIF]
.
The material described by Cr4AgTl3O14 crystallizes in the monoclinic C2/c space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CrO4 tetrahedra that share  a cornercorner with one Ag(1)O6 octahedra and  a cornercorner with one Cr(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. In the second Cr site, Cr(2) is bonded to one O(1), one O(5), one O(6), and one O(7) atom to form CrO4 tetrahedra that share corners with two equivalent Ag(1)O6 octahedra and  a cornercorner with one Cr(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-54°. Ag(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form AgO6 octahedra that share corners with two equivalent Cr(1)O4 tetrahedra and corners with four equivalent Cr(2)O4 tetrahedra. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted single-bond geometry to one O(4) atom. In the second Tl site, Tl(2) is bonded in a 4-coordinate geometry to two equivalent O(3) and two equivalent O(5) atoms. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Cr(1) and one Cr(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cr(1) and one Ag(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Cr(1) and one Tl(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Cr(1) and one Tl(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Cr(2), one Ag(1), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Cr(2) and one Ag(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Cr(2) atom. is represented by the CIF card [CIF]
data_Tl3Cr4AgO14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.558
_cell_length_b   7.558
_cell_length_c   13.802
_cell_angle_alpha   78.013
_cell_angle_beta   78.013
_cell_angle_gamma   90.339
_symmetry_Int_Tables_number   1
_cell_volume   753.359
_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
  Tl  Tl0  1  0.622  0.248  0.502  1.0
  Tl  Tl1  1  0.752  0.378  0.998  1.0
  Tl  Tl2  1  0.378  0.752  0.498  1.0
  Tl  Tl3  1  0.248  0.622  0.002  1.0
  Tl  Tl4  1  0.032  0.968  0.250  1.0
  Tl  Tl5  1  0.968  0.032  0.750  1.0
  Cr  Cr6  1  0.868  0.726  0.547  1.0
  Cr  Cr7  1  0.274  0.132  0.953  1.0
  Cr  Cr8  1  0.132  0.274  0.453  1.0
  Cr  Cr9  1  0.726  0.868  0.047  1.0
  Cr  Cr10  1  0.949  0.467  0.256  1.0
  Cr  Cr11  1  0.533  0.051  0.244  1.0
  Cr  Cr12  1  0.051  0.533  0.744  1.0
  Cr  Cr13  1  0.467  0.949  0.756  1.0
  Ag  Ag14  1  0.445  0.555  0.250  1.0
  Ag  Ag15  1  0.555  0.445  0.750  1.0
  O  O16  1  0.008  0.700  0.640  1.0
  O  O17  1  0.300  0.992  0.860  1.0
  O  O18  1  0.992  0.300  0.360  1.0
  O  O19  1  0.700  0.008  0.140  1.0
  O  O20  1  0.698  0.571  0.584  1.0
  O  O21  1  0.429  0.302  0.916  1.0
  O  O22  1  0.302  0.429  0.416  1.0
  O  O23  1  0.571  0.698  0.084  1.0
  O  O24  1  0.994  0.708  0.439  1.0
  O  O25  1  0.292  0.006  0.061  1.0
  O  O26  1  0.006  0.292  0.561  1.0
  O  O27  1  0.708  0.994  0.939  1.0
  O  O28  1  0.787  0.927  0.536  1.0
  O  O29  1  0.073  0.213  0.964  1.0
  O  O30  1  0.213  0.073  0.464  1.0
  O  O31  1  0.927  0.787  0.036  1.0
  O  O32  1  0.124  0.615  0.220  1.0
  O  O33  1  0.385  0.876  0.280  1.0
  O  O34  1  0.876  0.385  0.780  1.0
  O  O35  1  0.615  0.124  0.720  1.0
  O  O36  1  0.759  0.564  0.290  1.0
  O  O37  1  0.436  0.241  0.210  1.0
  O  O38  1  0.241  0.436  0.710  1.0
  O  O39  1  0.564  0.759  0.790  1.0
  O  O40  1  0.939  0.367  0.163  1.0
  O  O41  1  0.633  0.061  0.337  1.0
  O  O42  1  0.061  0.633  0.837  1.0
  O  O43  1  0.367  0.939  0.663  1.0
[/CIF]
.