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TOPIC: CONJUGATIONS STABILITY OF BENZENE. MORE CONJUGATION = MORE STABLE EVIDENCE : HEAT OF HYDROGENATION.

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Presentation on theme: "TOPIC: CONJUGATIONS STABILITY OF BENZENE. MORE CONJUGATION = MORE STABLE EVIDENCE : HEAT OF HYDROGENATION."— Presentation transcript:

1 TOPIC: CONJUGATIONS STABILITY OF BENZENE

2 MORE CONJUGATION = MORE STABLE EVIDENCE : HEAT OF HYDROGENATION

3 + 2H 2 1,4-pentadiene 1,3-pentadiene -219.7 KJ -192.0 KJ E Pentane

4 BENZENE STABILITY Cyclohexene 1,3- Cyclohexadiene Benzene + H 2 +2H 2 + 3H 2 Pt Cyclohexane

5 Edit the text with your own short phrases. The animation is already done for you; just copy and paste the slide into your existing presentation. STABILITY DIAGRAM E -119.5 KJ/mole -231.5 KJ/mole - 358.5kJ/mole Benzene + 3H 2 RESONANC E ENERGY =150.5 KJ/mole -208 KJ/mole 8kJ/mole

6 RANK STABILITY Most stable 2 nd MOST STABLE Next least stable 123123

7 CONFORMATIONS CONFORMATION about a Single Bond

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