3. Ketones (R₂C=O) typically exhibit absorbances in their electronic spectra with Amax 270- 290 nm (Emax 10-20 dm³mol-¹cm-¹) and 190 nm (Emax 2000 dm³ mol-¹cm-¹). Suggest an explanation for these observations.

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy
Section13.SE: Something Extra
Problem 60GP: Compound A, a hydrocarbon with M+=96 in its mass spectrum, has the 13C spectral data given below. On...
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3. Ketones (R₂C=O) typically exhibit absorbances in their electronic spectra with Amax 270 -
290 nm (max 10-20 dm³mol-¹cm-¹) and 190 nm (Emax 2000 dm³ mol-¹cm-¹).
Suggest an explanation for these observations.
Transcribed Image Text:3. Ketones (R₂C=O) typically exhibit absorbances in their electronic spectra with Amax 270 - 290 nm (max 10-20 dm³mol-¹cm-¹) and 190 nm (Emax 2000 dm³ mol-¹cm-¹). Suggest an explanation for these observations.
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