Answer to Question #108145 in General Chemistry for Hudabia

Question

Question #3
The n to pi star in acetone occur at longer wavelength than the pi to pi star transition, yet the latter transition has a much higher molar absorptivity. Explain.

Answer 1

This is because the lone pair interacts with the solvent such that the solvent align itself with ground state thus lowering energy at ground state and not at excited state.