TaCr3(AgS4)2 crystallizes in the monoclinic P2/m space group. Ta(1) is bonded to two equivalent S(2) and four equivalent S(3) atoms to form TaS6 octahedra that share corners with four equivalent Ag(1)S6 octahedra, edges with two equivalent Cr(2)S6 octahedra, edges with four equivalent Cr(1)S6 octahedra, and faces with two equivalent Ag(2)S6 octahedra. The corner-sharing octahedral tilt angles are 51°. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form CrS6 octahedra that share corners with four equivalent Ag(1)S6 octahedra, corners with four equivalent Ag(2)S6 octahedra, edges with two equivalent Ta(1)S6 octahedra, edges with two equivalent Cr(1)S6 octahedra, and edges with two equivalent Cr(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 42-47°. In the second Cr site, Cr(2) is bonded to two equivalent S(1) and four equivalent S(3) atoms to form CrS6 octahedra that share corners with four equivalent Ag(2)S6 octahedra, edges with two equivalent Ta(1)S6 octahedra, edges with four equivalent Cr(1)S6 octahedra, and faces with two equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent S(1) and four equivalent S(3) atoms to form distorted AgS6 octahedra that share corners with four equivalent Ta(1)S6 octahedra, corners with eight equivalent Cr(1)S6 octahedra, edges with two equivalent Ag(2)S6 octahedra, and faces with two equivalent Cr(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 42-51°. In the second Ag site, Ag(2) is bonded to two equivalent S(2) and four equivalent S(3) atoms to form distorted AgS6 octahedra that share corners with four equivalent Cr(2)S6 octahedra, corners with eight equivalent Cr(1)S6 octahedra, edges with two equivalent Ag(1)S6 octahedra, and faces with two equivalent Ta(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 44-50°. There are three inequivalent S sites. In the first S site, S(1) is bonded in a rectangular see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ag(1) atom. In the second S site, S(2) is bonded in a rectangular see-saw-like geometry to one Ta(1), two equivalent Cr(1), and one Ag(2) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Ta(1), one Cr(1), one Cr(2), one Ag(1), and one Ag(2) atom.
TaCr3(AgS4)2 crystallizes in the monoclinic P2/m space group. Ta(1) is bonded to two equivalent S(2) and four equivalent S(3) atoms to form TaS6 octahedra that share corners with four equivalent Ag(1)S6 octahedra, edges with two equivalent Cr(2)S6 octahedra, edges with four equivalent Cr(1)S6 octahedra, and faces with two equivalent Ag(2)S6 octahedra. The corner-sharing octahedral tilt angles are 51°. Both Ta(1)-S(2) bond lengths are 2.48 Å. All Ta(1)-S(3) bond lengths are 2.48 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms to form CrS6 octahedra that share corners with four equivalent Ag(1)S6 octahedra, corners with four equivalent Ag(2)S6 octahedra, edges with two equivalent Ta(1)S6 octahedra, edges with two equivalent Cr(1)S6 octahedra, and edges with two equivalent Cr(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 42-47°. Both Cr(1)-S(1) bond lengths are 2.38 Å. Both Cr(1)-S(2) bond lengths are 2.43 Å. Both Cr(1)-S(3) bond lengths are 2.43 Å. In the second Cr site, Cr(2) is bonded to two equivalent S(1) and four equivalent S(3) atoms to form CrS6 octahedra that share corners with four equivalent Ag(2)S6 octahedra, edges with two equivalent Ta(1)S6 octahedra, edges with four equivalent Cr(1)S6 octahedra, and faces with two equivalent Ag(1)S6 octahedra. The corner-sharing octahedral tilt angles are 50°. Both Cr(2)-S(1) bond lengths are 2.40 Å. All Cr(2)-S(3) bond lengths are 2.43 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent S(1) and four equivalent S(3) atoms to form distorted AgS6 octahedra that share corners with four equivalent Ta(1)S6 octahedra, corners with eight equivalent Cr(1)S6 octahedra, edges with two equivalent Ag(2)S6 octahedra, and faces with two equivalent Cr(2)S6 octahedra. The corner-sharing octahedral tilt angles range from 42-51°. Both Ag(1)-S(1) bond lengths are 2.66 Å. All Ag(1)-S(3) bond lengths are 2.81 Å. In the second Ag site, Ag(2) is bonded to two equivalent S(2) and four equivalent S(3) atoms to form distorted AgS6 octahedra that share corners with four equivalent Cr(2)S6 octahedra, corners with eight equivalent Cr(1)S6 octahedra, edges with two equivalent Ag(1)S6 octahedra, and faces with two equivalent Ta(1)S6 octahedra. The corner-sharing octahedral tilt angles range from 44-50°. Both Ag(2)-S(2) bond lengths are 2.63 Å. All Ag(2)-S(3) bond lengths are 2.85 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a rectangular see-saw-like geometry to one Cr(2), two equivalent Cr(1), and one Ag(1) atom. In the second S site, S(2) is bonded in a rectangular see-saw-like geometry to one Ta(1), two equivalent Cr(1), and one Ag(2) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Ta(1), one Cr(1), one Cr(2), one Ag(1), and one Ag(2) atom.