Carbanion Stability (Higher s-character stabilizes anion; electron-withdrawing groups stabilize carbanions)
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Higher s-character stabilizes anion; electron-withdrawing groups stabilize carbanions
What each symbol means
| Symbol | What it stands for |
|---|---|
| EWG | −I/−M groups |
| orbital | s-rich orbital holds pair tighter to nucleus |
When to use this
Substituent effects combine; resonance delocalization dominates when available.