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Explain why alkanes don't have optical isomers.

   Explain why alkanes don't have optical isomers.

Chemistry The Science in Context

Chemistry The Science in Context

Thomas R. Gilbert 5th Edition

Chapter 9, Problem 72

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Solved by Expert David Collins

05/04/2020

Step 1

Alkanes are hydrocarbons with the general formula CnH2n+2. They are formed with carbon and hydrogen atoms connected by single bonds. This means that the carbon atoms in alkanes are sp3 hybridized and have a tetrahedral geometry. Show more…

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Explain why alkanes don't have optical isomers.

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Key Concepts

Chirality

Chirality is the property of a molecule that makes it non-superimposable on its mirror image. In stereochemistry, a chiral molecule typically contains one or more centers (stereocenters) where the arrangement of atoms is such that its mirror image cannot be aligned with the original molecule.

Optical Isomerism

Optical isomerism arises from chirality, where molecules exist as two enantiomers that are mirror images of each other. These enantiomers rotate plane-polarized light in opposite directions, a phenomenon that is key in the study of stereoisomers in organic chemistry.

Molecular Symmetry

Molecular symmetry refers to the presence of symmetry elements such as planes, centers, or axes of symmetry within a molecule. Molecules with these symmetry elements are usually achiral because their mirror images can be superimposed on the original structure, preventing the formation of optical isomers.

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