CuI is Zincblende, Sphalerite structured and crystallizes in the monoclinic Pc space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one I(2) and three equivalent I(1) atoms to form corner-sharing CuI4 tetrahedra. In the second Cu site, Cu(2) is bonded to one I(1) and three equivalent I(2) atoms to form corner-sharing CuI4 tetrahedra. There are two inequivalent I sites. In the first I site, I(1) is bonded to one Cu(2) and three equivalent Cu(1) atoms to form corner-sharing ICu4 tetrahedra. In the second I site, I(2) is bonded to one Cu(1) and three equivalent Cu(2) atoms to form corner-sharing ICu4 tetrahedra.
CuI is Zincblende, Sphalerite structured and crystallizes in the monoclinic Pc space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one I(2) and three equivalent I(1) atoms to form corner-sharing CuI4 tetrahedra. The Cu(1)-I(2) bond length is 2.62 Å. There are two shorter (2.61 Å) and one longer (2.67 Å) Cu(1)-I(1) bond length. In the second Cu site, Cu(2) is bonded to one I(1) and three equivalent I(2) atoms to form corner-sharing CuI4 tetrahedra. The Cu(2)-I(1) bond length is 2.63 Å. There are a spread of Cu(2)-I(2) bond distances ranging from 2.59-2.66 Å. There are two inequivalent I sites. In the first I site, I(1) is bonded to one Cu(2) and three equivalent Cu(1) atoms to form corner-sharing ICu4 tetrahedra. In the second I site, I(2) is bonded to one Cu(1) and three equivalent Cu(2) atoms to form corner-sharing ICu4 tetrahedra.