CsAg2I3 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent I(3), three equivalent I(1), and three equivalent I(2) atoms. Ag(1) is bonded to one I(1), one I(2), and two equivalent I(3) atoms to form a mixture of distorted corner and edge-sharing AgI4 tetrahedra. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Ag(1) atoms. In the second I site, I(2) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Ag(1) atoms. In the third I site, I(3) is bonded to two equivalent Cs(1) and four equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing ICs2Ag4 pentagonal pyramids.
CsAg2I3 crystallizes in the orthorhombic Pnma space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent I(3), three equivalent I(1), and three equivalent I(2) atoms. Both Cs(1)-I(3) bond lengths are 4.13 Å. There are two shorter (4.02 Å) and one longer (4.29 Å) Cs(1)-I(1) bond length. There are two shorter (3.99 Å) and one longer (4.18 Å) Cs(1)-I(2) bond length. Ag(1) is bonded to one I(1), one I(2), and two equivalent I(3) atoms to form a mixture of distorted corner and edge-sharing AgI4 tetrahedra. The Ag(1)-I(1) bond length is 2.83 Å. The Ag(1)-I(2) bond length is 2.84 Å. There is one shorter (2.98 Å) and one longer (3.00 Å) Ag(1)-I(3) bond length. There are three inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Ag(1) atoms. In the second I site, I(2) is bonded in a 5-coordinate geometry to three equivalent Cs(1) and two equivalent Ag(1) atoms. In the third I site, I(3) is bonded to two equivalent Cs(1) and four equivalent Ag(1) atoms to form a mixture of distorted corner and edge-sharing ICs2Ag4 pentagonal pyramids.