Acetaldehyde shows two UV bands, one with a λmax of 289 nm (ε = 12) and one with a λmax of 182 nm (ε = 10,000). Which one is the n -> π* transition and which is the π -> π* transition? Explain your reasoning.

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
ChapterL3: Carbon (13c) Nmr Spectroscopy
Section: Chapter Questions
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Acetaldehyde shows two UV bands, one with a λmax of 289 nm (ε = 12) and one with a λmax of 182 nm (ε = 10,000). Which one is the n -> π* transition and which is the π -> π* transition?  Explain your reasoning.

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