Symmetry, absorbtion and benzene

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SUMMARY

High symmetry molecules, such as benzene, exhibit lower light absorption compared to low symmetry molecules, like benzene with a hydroxyl group. The discussion highlights that the influence of symmetry on light absorption is contingent upon the specific atoms or functional groups involved. A symmetric attachment tends to diminish the effect of an electric dipole, thereby reducing the molecule's ability to absorb light effectively.

PREREQUISITES
  • Understanding of molecular symmetry and its effects on light absorption
  • Familiarity with the concept of electric dipoles in chemistry
  • Knowledge of functional groups and their influence on molecular properties
  • Basic principles of spectroscopy and light interaction with matter
NEXT STEPS
  • Research the role of molecular symmetry in spectroscopy
  • Explore the effects of functional groups on light absorption in organic compounds
  • Learn about electric dipole moments and their significance in molecular interactions
  • Investigate the differences in absorption spectra between symmetric and asymmetric molecules
USEFUL FOR

Chemists, molecular biologists, and students studying organic chemistry who are interested in the relationship between molecular structure and light absorption properties.

evidenso
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Is it right that high symmetry molecules does not absorb light as good as low symmetry molecules? let's take an example like benzene versus benzene+hydroxyl?
 
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Depends on which atom or functional group you're are referring to ; if it's the same functional group I would imagine that a symmetric attachment would be less of an influence with an electric dipole .
 

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