CsAg7S4 crystallizes in the tetragonal P4/n space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. In the second Cs site, Cs(2) is bonded in a body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a linear geometry to two equivalent S(1) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one S(1) and three equivalent S(2) atoms. In the third Ag site, Ag(3) is bonded in a distorted trigonal non-coplanar geometry to one S(2) and two equivalent S(1) atoms. In the fourth Ag site, Ag(4) is bonded in a distorted trigonal planar geometry to one S(1) and two equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to one Cs(1), one Cs(2), one Ag(1), one Ag(2), one Ag(4), and two equivalent Ag(3) atoms. In the second S site, S(2) is bonded in a 8-coordinate geometry to one Cs(1), one Cs(2), one Ag(3), two equivalent Ag(4), and three equivalent Ag(2) atoms.
CsAg7S4 crystallizes in the tetragonal P4/n space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. All Cs(1)-S(1) bond lengths are 3.64 Å. All Cs(1)-S(2) bond lengths are 3.61 Å. In the second Cs site, Cs(2) is bonded in a body-centered cubic geometry to four equivalent S(1) and four equivalent S(2) atoms. All Cs(2)-S(1) bond lengths are 3.70 Å. All Cs(2)-S(2) bond lengths are 3.63 Å. There are four inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a linear geometry to two equivalent S(1) atoms. Both Ag(1)-S(1) bond lengths are 2.41 Å. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one S(1) and three equivalent S(2) atoms. The Ag(2)-S(1) bond length is 2.58 Å. There are a spread of Ag(2)-S(2) bond distances ranging from 2.47-3.16 Å. In the third Ag site, Ag(3) is bonded in a distorted trigonal non-coplanar geometry to one S(2) and two equivalent S(1) atoms. The Ag(3)-S(2) bond length is 2.59 Å. There is one shorter (2.60 Å) and one longer (2.62 Å) Ag(3)-S(1) bond length. In the fourth Ag site, Ag(4) is bonded in a distorted trigonal planar geometry to one S(1) and two equivalent S(2) atoms. The Ag(4)-S(1) bond length is 2.65 Å. There is one shorter (2.50 Å) and one longer (2.57 Å) Ag(4)-S(2) bond length. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to one Cs(1), one Cs(2), one Ag(1), one Ag(2), one Ag(4), and two equivalent Ag(3) atoms. In the second S site, S(2) is bonded in a 8-coordinate geometry to one Cs(1), one Cs(2), one Ag(3), two equivalent Ag(4), and three equivalent Ag(2) atoms.