Molecular Geometry and VESPR Theory (3.5)

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Presentation transcript:

Molecular Geometry and VESPR Theory (3.5)

Structure = Function Molecule Polarity

Structure = Function Attraction between molecules

Structure = Function Reactivity

VESPR Lone Pair electrons vs VESPR Lone Pair electrons vs. Shared electrons (bonds) Sulfur is the central atom

Sigma (σ) and Pi (π) Bonds

Sigma Bond orientation Head to head orientation

Pi Bond orientation Side by side

Planar Molecules These atoms are arranged in one plane of view.Imagine them being drawn on a piece of paper.

Linear molecules

Trigonal Planear

Bent or Angular Planar 1 Lone Pair

3 – dimensional These shapes occur in 3 dimensions 1) Up/down 2) left/right 3) forward/backward

Bent or Angular Pyramidal 2 lone pairs

Tetrahedral

Trigonal-Pyramidal 1 lone pair

Trigonal Bi-pyramidal

Octahedral Four sides per pyramid

Hybridization All 2sp orbitals have the same amount of energy

Hybridized compound

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