Page 29 Flashcards
How many steps are shown in the energy diagram for an E1 reaction?
A: Two steps.
What is the rate-determining step in an E1 reaction?
A: Step [1], where the carbocation is formed
Why does the energy diagram for an E1 reaction have two energy barriers?
A: Each step in the reaction (carbocation formation and proton elimination) has its own energy barrier.
What does the first peak in the energy diagram for an E1 reaction represent?
A: The transition state for carbocation formation.
What intermediate is present in an E1 reaction?
A: A carbocation intermediate.
What happens during the second step of an E1 reaction?
A: A β-proton is removed, and a π bond is formed.
Q: What does the second peak in the energy diagram represent?
A: The transition state for the β-proton removal and π bond formation.
How does the energy of the carbocation intermediate compare to the starting material and products?
A: The carbocation intermediate is higher in energy than both the starting material and products.
What does ΔH°[1] indicate in the diagram?
A: The enthalpy change for the first step (carbocation formation).
What is the relationship between the height of the energy barrier and the reaction rate in E1?
A: A higher energy barrier corresponds to a slower reaction rate.
