In the discussion, the positioning of lone pairs in molecular geometries is analyzed, specifically in SCl4 and IF5. In SCl4, the lone pair occupies an equatorial position, while in IF5, it occupies an axial position due to its pseudo-octahedral geometry. The distinction between axial and equatorial positions is clarified, noting that five fluoride ligands cannot occupy all six corners of an octahedron, leading to the conclusion that the lone pair occupies the sixth corner, resulting in a pseudo-octahedral configuration. The conversation also touches on the equivalence of the corners in an octahedron, suggesting that there is no inherent difference between axial and equatorial positions.
