Materials Data on Ba2I2O by Materials Project
Ba2OI2 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. Ba2+ is bonded in a distorted L-shaped geometry to two equivalent O2- and five equivalent I1- atoms. Both Ba–O bond lengths are 2.55 Å. There are a spread of Ba–I bond distances ranging from 3.64–3.81 Å. O2- is bonded to four equivalent Ba2+ atoms to form distorted edge-sharing OBa4 tetrahedra. I1- is bonded in a 5-coordinate geometry to five equivalent Ba2+ atoms.