Chemistry 1027A/B Chapter Notes - Chapter 2.3: Bent Bond, Lewis Structure, Pi Bond
30 Apr 2012
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This common orbital, which is an overlap of atomic orbitals, contains two electrons of opposite spin: as a result of the overlap, the electrons are deemed to be localized. They are restricted to the area between the two respective nuclei. They cannot move around, or delocalize throughout the molecule: within the molecule, the atomic orbitals located on the central atom are not necessarily pure atomic orbitals. Bonds involving elements in the second or higher row of the periodic table involve combinations of atomic orbitals that form hybrid orbitals as the bonds are being made. Hybrid orbitals a mixture of pure atomic orbitals. Only one of the p" orbitals is used. These two remaining orbitals can be used to make double and triple bonds sp2 hybridization: The remaining, unused p" orbital on each carbon atom may be used to make a double bond sp3 hybridization:
