Back to marketplace
L18 - Aromacticity 1
No description yet. This curated deck is ready for daily study.
Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (5)
#1
Front (Question)
What is the problem with the benzene representation with 3dbs? What is the solution?
Back (Answer)
C-C = 0.154nm C=C = 0.134nm C-C (benzene) = 0.139nm BUT all bond lengths are the same = resonance forms
#2
Front (Question)
What is a better representation of the benzene ring? Why?
Back (Answer)
Hexagon with a cirlce in the middle - delocalised pi system above and below the plane
#3
Front (Question)
What is aromaticity?
Back (Answer)
Electrons are delocalised over the whole conjugated system
#4
Front (Question)
What are properties of aromatics?
Back (Answer)
Hückel criteria - conjugated system - cyclic - flat - (4n+2)pie-
#5
Front (Question)
What are examples that follow the Hückel criteria?
Back (Answer)
• benzene • piridine • pyrrole • imidazole