why-do-conjugated-pi-bonds-lead-to-shifts-in-absorption-wavelengths-in-uv-vis-sp

Question

Why do conjugated pi bonds lead to shifts in absorption wavelengths in UV-Vis spectroscopy?

Accepted Answer

Conjugated pi bonds stabilize excited states, lowering energy gaps.

Answer

Conjugated pi bonds have no effect on electronic transitions.

Answer

Conjugated pi bonds increase the intensity of absorption peaks.

Answer

Conjugated pi bonds increase the energy required for electronic transitions.