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Grade upto college level Organic Chemistry

Which of the following alkenes would have the largest lmax?

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Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Kevin Nash
12 Years ago
D) Alkyl substitution will increase ?max because the alkyl groups can stabilize the excited state by hyperconjugation resonance. Therefore the excited state will have a lower energy which translates to a longer wavelength. E = hc/?