IR Demonstration III – Molecular Vibrations
Description: Differences in atomic vibrations are simulated by hanging weights from two equivalent springs and a third looser spring. Two of the weights are similar, and the third weighs less. By gently pulling the weights and releasing them, the vibrations of the weights on the springs can be compared to IR vibrations of different bond strengths and different atomic masses.
Source: UW Card Catalog
Year: N/A Vol: N/A Page: N/A
Keywords: Bond strength, Bond length, Molecular vibration, Atomic vibration
Rating: 
Hazard: Low
- Model or simulation
Effectiveness: Good
- Results are clearly observable with guidance
- Medium failure rate
- Good connection from demo to course material
- Time to results is low
- Mild effects are seen by audience
Difficulty: Low
- Simple manipulations for most to perform
- Simple procedures
Safety Precautions:
- Eye protection required
Class: Spectroscopy, Simulations, Molecular Structure
Division: General, Organic Chemistry
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