Which is the most energetically favorable UV transition for 1,3-butadiene? A) (n $\to$ $\sigma$*) B) (n $\to$ $\pi$*) C) ($\pi$₂ $\to$ $\pi$₃*) D) ($\sigma$ $\to$ $\sigma$*) E)($\pi$₁ $\to$ $\pi$₄*)

Question

Quizplus · Accepted Answer

The most energetically favorable UV transition for 1,3-butadiene is the π to π* transition, which involves the promotion of an electron from a bonding π orbital to an antibonding π* orbital. This transition requires less energy compared to σ to σ* or n to π* transitions.

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