Here’s a explanation:
Rotational Spectroscopy
- Looks at how a molecule spins.
- Uses microwave light.
- Tells us about molecule size and shape.
Vibrational Spectroscopy
- Looks at how atoms in a molecule stretch and bend.
- Uses infrared light.
- Tells us about types of bonds and functional groups.
Easy way to remember:
- Rotation → spinning → microwaves
- Vibration → stretching/bending → infrared