BaI2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 9-coordinate geometry to four equivalent I(2) and five equivalent I(1) atoms. There are two inequivalent I sites. In the first I site, I(2) is bonded to four equivalent Ba(1) atoms to form a mixture of corner and edge-sharing IBa4 tetrahedra. In the second I site, I(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1) atoms.
BaI2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 9-coordinate geometry to four equivalent I(2) and five equivalent I(1) atoms. There are a spread of Ba(1)-I(2) bond distances ranging from 3.50-3.59 Å. There are a spread of Ba(1)-I(1) bond distances ranging from 3.65-4.13 Å. There are two inequivalent I sites. In the first I site, I(2) is bonded to four equivalent Ba(1) atoms to form a mixture of corner and edge-sharing IBa4 tetrahedra. In the second I site, I(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1) atoms.