In 1-butene, the C=C bond and the C-C bond have different molecular hybridization.
The C=C bond in 1-butene is formed by the overlap of two sp2 hybrid orbitals. The carbon atoms involved in the C=C bond have three electron regions around them, including the double bond and the remaining two sigma bonds with hydrogen atoms or other substituents. To accommodate these three regions, the carbon atoms adopt sp2 hybridization, which results in the formation of three sp2 hybrid orbitals. One of these orbitals forms a sigma bond with the carbon of the other double-bonded carbon atom, while the other two hybrid orbitals form sigma bonds with hydrogen or other substituents. This hybridization allows the formation of a planar, trigonal planar geometry around the C=C bond.
On the other hand, the C-C bond in 1-butene is formed by the overlap of two sp3 hybrid orbitals. The carbon atoms involved in the C-C bond have four electron regions around them, including the sigma bond with the other carbon atom, the sigma bond with a hydrogen or other substituent, and the remaining two sigma bonds with other substituents. To accommodate these four regions, the carbon atoms adopt sp3 hybridization, which results in the formation of four sp3 hybrid orbitals. One of these hybrid orbitals forms a sigma bond with the carbon of the other carbon atom, while the other three hybrid orbitals form sigma bonds with hydrogen or other substituents. This hybridization allows the formation of a tetrahedral geometry around the C-C bond.
The bond angle in the C=C bond of 1-butene is approximately 120 degrees, indicating a trigonal planar geometry. The bond angle in the C-C bond of 1-butene is approximately 109.5 degrees, indicating a tetrahedral geometry. These values are in accordance with the expected bond angles for sp2 and sp3 hybridized carbon atoms, respectively.
Reference:
- Vollhardt, K. Peter C., and Neil Eric Schore. "Organic chemistry: structure and function." Freeman and Company, 2007.
Describe the molecular hybridization in the C=C and the C-C bond of 1-butene. Comment on the bond angle and the geometry in 1-butene ( use literature)
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