Molecular Structure: VSEPR: Trigonal bipyramid-based shapes (AXnEm, n+m=5)




Arrangement of Electron Pairs AX5 AX4E AX3E2 AX2E3
PCL5 SF4 ClF3 I3-

Trigonal Bipryramid

Sawhorse

T-shape

Linear
PCl5 SF4 ClF3 I3-

All these geometries were theoretically found at the DFT-B3LYP level of theory (6-31G(d,p) basis sets for light atoms and Stuttgart ECPs for the heaviest ones)

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