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.
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°. The Cr(1)-O(1) bond length is 1.80 Å. The Cr(1)-O(2) bond length is 1.66 Å. The Cr(1)-O(3) bond length is 1.63 Å. The Cr(1)-O(4) bond length is 1.63 Å. 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°. The Cr(2)-O(1) bond length is 1.79 Å. The Cr(2)-O(5) bond length is 1.65 Å. The Cr(2)-O(6) bond length is 1.64 Å. The Cr(2)-O(7) bond length is 1.64 Å. 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. Both Ag(1)-O(2) bond lengths are 2.32 Å. Both Ag(1)-O(5) bond lengths are 2.57 Å. Both Ag(1)-O(6) bond lengths are 2.55 Å. 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. The Tl(1)-O(4) bond length is 2.73 Å. 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. Both Tl(2)-O(3) bond lengths are 2.88 Å. Both Tl(2)-O(5) bond lengths are 2.85 Å. 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.