Molecular Structure: VSEPR: Tetrahedron-based shapes (AXnEm, n+m=4)




Arrangement of Electron Pairs AX4 AX3E AX2E2
CH4 NH3 H2O

Tetrahedron
Trigonal Pyramid
Bent
CH4 NH3 H2O

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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