Chemistry A-Level
π electron density and electrophilic attack
What π electron density and electrophilic attack means in Chemistry A-Level, as defined for OCR.
Definition of π electron density and electrophilic attack
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Reference: OCR
Lower π electron density in benzene means weaker attraction for a bromine molecule, so the ring is less able to induce a dipole in, and attract, bromine.
Topics that use π electron density and electrophilic attack
- Aromatic compounds (OCR A-Level)
Related terms
- Activating and 2,4-directing effect of the –OH group
- Bond lengths in benzene
- Carbon–carbon bond formation in synthesis
- Comparison with carboxylic acids and the carbonate test
- Delocalised π system and electron density
- Delocalised π system in benzene
- Directing effects
- Directing effects of OH, NH₂ and NO₂
Using π electron density and electrophilic attack in the exam
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