2. C We have to solve the time independent problem H o  o = E o  o Harry Kroto 2004

3. Atoms Basically only electronic transitions >10000 cm -1

4. Atoms Molecules Basically only electronic transitions >10000 cm -1

5. Atoms Molecules Basically only electronic transitions >10000 cm -1 electronic transitions E > 10000 cm -1

6. Atoms Molecules Basically only electronic transitions >10000 cm -1 electronic transitions E > 10000 cm -1 Vibrational transitions E = 100-10000 cm -1

7. Atoms Molecules Basically only electronic transitions >10000 cm -1 electronic transitions E > 10000 cm -1 Vibrational transitions E = 100-10000 cm -1 Rotational transitions E = 0.1 – 100 cm -1

8. electronic transitions E > 10000 cm -1 Harry Kroto 2004 Molecules

10. electronic transitions E > 10000 cm -1 Harry Kroto 2004 Vibrational transitions E = 100-10000 cm -1 Molecules

11. Vibrations

12. electronic transitions E > 10000 cm -1 Harry Kroto 2004 Vibrational transitions E = 100-10000 cm -1 Molecules Rotational transitions E = 0.1 – 100 cm -1

13. Rotational motion of a linear molecule HCCCCCNHCCCCCN

14. Harry Kroto 2004