Why are n-π* transitions generally of low intensities/low absorptions? What photon energy and wavelength would you need to send on a compound having an energy gap (Eg) of 2.7 eV? Detail your answer with appropriate information. Using molecular orbital theory/concept (draw the important molecular orbitals), explain the difference in absorption for the phenolphthalein in neutral medium or in basic medium, both for the n-π* and the π-π* transition.

The n to π* transition corresponds to the excitation of an electron from one of the unshared pair to…

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Why are n-π* transitions generally of low intensities/low absorptions?

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter56: The Synthesis Of 2,2-dimethyl-1,5-dioxolane; The Acetonide Derivative Of A Vicinal Diol

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Why are n-π* transitions generally of low intensities/low absorptions?
What photon energy and wavelength would you need to send on a compound having an energy gap (Eg) of 2.7 eV? Detail your answer with appropriate information.
Using molecular orbital theory/concept (draw the important molecular orbitals), explain the difference in absorption for the phenolphthalein in neutral medium or in basic medium, both for the n-π* and the π-π* transition.

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