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Course: Class 11 Chemistry (India) > Unit 12
Lesson 10: Electron displacement effects- Intro to Electronic Effects (& why should I care ?)
- The Inductive Effect
- Inductive effect and stability of intermediates-Part 1
- Inductive effect and stability of reaction intermediates- Part 2
- Inductive effect on stability of intermediates
- Stability of intermediates (all electronic effects)
- Identify aromatic, anti-aromatic and non-aromatic molecules
- Application of aromaticity
- Resonance structures
- Resonance structure patterns
- Resonance structures for benzene and the phenoxide anion
- Common mistakes when drawing resonance structures
- Identifying the correct resonating structure.
- Resonance structures and hybridization
- 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.
- Worked ex - Resonance vs Inductive Effects
- Inductive v/s Resonance.
- Hyperconjugation in a benzyl cation
- Hyperconjugation and stability of carbocations.
- Alkene stability
- Hyperconjugation - Isotopic Effect
- Heat of hydrogenation vs stability of alkenes
- Hyperconjugation and stability of alkenes.
- Worked ex : Resonance vs Hyperconjugation
- Who wins? Resonance, Hyperconjugation or Inductive? (ADVANCED)
- Carbocation stability and rearrangement introduction
- Carbocation rearrangement practice
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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.