Chapter 8Lecture 8.5 Hybridization
Section 8.3Bonding Theories
Molecular Orbitals
• an orbital formed by the overlap of atomic orbitals–Bonding orbital• Can be occupied by two electrons in a covalent
bond–Sigma Bond–Pi Bond
Sigma Bondσ
• Head-on overlap of two atomic orbitals• Has axial symmetry
Sigma Bondσ
Hydrogen, H2
Sigma Bondσ
Fluorine, F2
Pi Bondπ
• Side by side overlap of two orbitals
Ethene
Ethyne
H - C = C - H
CH4
Hybridizaton
• The combination of orbitals
sp3
8.3 Hybrid Orbitalssp2
– Hybridization Involving Double Bonds
sp2
Ethene, C2H4
Ethene
spethyne, C2H2
8.3
Hybrid Orbitals
– Hybridization Involving Triple Bonds
Ethyne
H - C = C - H
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