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Course: Organic chemistry (Essentials) - Class 11 > Unit 5
Lesson 2: Resonance- Resonance structures
- Resonance structure patterns
- Resonance structures for benzene and the phenoxide anion
- Common mistakes when drawing resonance structures
- Identifying the correct resonating structure.
- Stability due to Resonance
- Quantity of Resonating Structures vs Quality
- Resonance and stability of aliphatic intermediates.
- +R & -R groups in Resonance
- Relative strengths of different +R groups
- Relative strengths of different -R groups
- Resonance due to Electron Donors in a Benzyl Cation
- Effect of an electron withdrawing group in a benzyl cation
- Stability of a substituted benzyl anion
- Resonance and stability of aromatic intermediates.
- Comparing the stabilities of aromatic and aliphatic intermediates using resonance.
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Quantity of Resonating Structures vs Quality
A more number of resonating structures might not always mean more stability. The quality of the resonating structures formed matters too.
Acetate ions are more stable than phenoxide even though the latter has more resonating structures!
Created by Shahzad Karim.