Unformatted text preview: ) with the experimental IR frequencies for carbon dioxide listed on page 84 in the manual. What can you conclude? Explain. (III) Label ALL the bond angles, distances and strain energy for the molecule of caffeine . (IV) Analyze the LITERATURE caffeine IR spectrum by identifying as many vibrational motions for various functional groups as you can on the spectrum. The literature caffeine IR spectrum is attached on the last page of your IR worksheets. If for some reason, you don’t have the literature IR spectrum for caffeine, you can go to the following web site to download the IR spectrum of pure caffeine: http://chemfinder.cambridgesoft.com/ In the search engine, type " caffeine ". Scroll down the screen and there should be an item called " NIST Chemistry WebBook ". Click on " Information for this particular compound " under the NIST link. You should be able to find the gas phase IR spectrum of pure caffeine....
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- Winter '08
- Infrared Spectroscopy, Infrared, caffeine IR spectrum, literature caffeine ir