Is the C=O Bond Length Shortened Due to Resonance?

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SUMMARY

The discussion centers on the question of whether the C=O bond length is shortened due to resonance. Participants agree that while double bonds are indeed stronger than single bonds, the shortening of the bond length is not attributed to resonance effects. The consensus is that the energy associated with double bonds is the primary factor influencing bond length, rather than resonance, which is applicable in more complex molecular structures. The conclusion drawn is that the bond length is shorter due to the inherent strength of double bonds, not resonance.

PREREQUISITES
  • Understanding of chemical bonding, specifically double and single bonds.
  • Familiarity with resonance structures in molecular chemistry.
  • Knowledge of bond length measurements and their significance.
  • Basic principles of molecular geometry and electron repulsion.
NEXT STEPS
  • Study the concept of resonance in more complex molecules, such as benzene.
  • Research the impact of bond strength on molecular stability and reactivity.
  • Explore experimental techniques for measuring bond lengths in various compounds.
  • Learn about hybridization and its role in determining bond characteristics.
USEFUL FOR

Chemistry students, educators, and professionals interested in molecular bonding and resonance effects in chemical structures.

Masschaos
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Homework Statement



The Questions asks if the C=O bond length is shortened due to resonance

Homework Equations





The Attempt at a Solution


Now, I know that double bonds are stronger than a single bond and the strength outweighs the repulsion by the electrons. I'm just hesitant to say that its true because I'm not sure about the 'due to resonance' part. I feel like it is trying to trip me up.
 
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AFAIK, the term http://en.wikipedia.org/wiki/Resonance_(chemistry)" in the context of chemistry only applies in some situations where there is more than two atoms. Did the problem give you an entire molecule?
 
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No, It said exactly that.
I had decided that the bond length was shorter, but not due to resonance. Due to the energy of double bonds and such, and I was correct according the the exam.
 

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