Significance
Understanding steric effects is critical to chemistry, biochemistry and pharmacology. In chemistry, steric effects are nearly universal and affect the rates and energies of most chemical reactions to varying degrees. In biochemistry, steric effects are often exploited in naturally occurring molecules such as enzymes, where the catalytic site may be buried within a large protein structure. In pharmacology, steric effects determine how and at what rate a drug will interact with its target bio-molecules.
Note the organic chemical example of Stereochemistry of ketonization of enols and enolates where diastereoselectivity results from steric hindrance.
Read more about this topic: Steric Effects
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