Why does a hydroquinone has a non zero dipole moment?

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SUMMARY

Hydroquinone exhibits a non-zero dipole moment due to the spatial arrangement of its hydroxyl (OH) groups at the para positions on the benzene ring. While one might expect these groups to cancel each other out, the molecular geometry and the distance between the dipoles prevent complete cancellation. The discussion highlights the importance of molecular plane changes and the relative positioning of dipoles in determining the overall dipole moment.

PREREQUISITES
  • Understanding of molecular geometry and dipole moments
  • Familiarity with organic chemistry concepts, specifically aromatic compounds
  • Knowledge of the effects of functional groups on molecular polarity
  • Basic principles of intermolecular interactions
NEXT STEPS
  • Research the impact of molecular geometry on dipole moments
  • Study the properties of aromatic compounds and their functional groups
  • Explore the concept of dipole-dipole interactions in organic molecules
  • Investigate how molecular plane changes affect dipole alignment
USEFUL FOR

Chemistry students, organic chemists, and researchers interested in molecular polarity and the behavior of aromatic compounds.

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Why does hydroquinone possesses non zero dipole moment? The OH groups present at para positions on the benzene ring should cancel the effect of each other...if there is a plane change then exactly in which cases molecules do change planes?
 
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How far are the two dipoles from one another? Do the dipoles act through the same center?
 

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