Calculer au moyen des règles de Woodward-Fieser et Scott les longueurs d'onde des maxima d'absorption des composés suivants.
Understand the Problem
La question demande de calculer les longueurs d'onde maximales d'absorption des composés chimiques donnés en utilisant les règles de Woodward-Fieser et Scott.
Answer
λ(A) = 256 nm, λ(B) = 272 nm, λ(C) = 300 nm
The final answer is λ(A) = 256 nm, λ(B) = 272 nm, λ(C) = 300 nm
Answer for screen readers
The final answer is λ(A) = 256 nm, λ(B) = 272 nm, λ(C) = 300 nm
More Information
The Woodward-Fieser rules use structural elements to predict UV-Vis absorption maxima. They are particularly useful for compounds with conjugated systems like dienes and enones.
Tips
Be sure to correctly identify structural elements such as conjugated dienes and enone systems.
Sources
- Règles de Woodward-Fieser - Chimactiv - AgroParisTech - chimactiv.agroparistech.fr
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