IR Spectrum Info: Benzaldehyde, Cinnamaldehyde, etc.

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SUMMARY

This discussion focuses on obtaining infrared (IR) spectra information for compounds such as benzaldehyde, cinnamaldehyde, benzophenone, cyclohexanone, and acetophenone. Users recommend utilizing databases like the Sadtler database, NIST, and the Aldrich library of FT-IR spectra for accurate peak identification. It is crucial to ensure that the spectra are obtained under consistent conditions, as variations in solvents can lead to shifts in wavelength peaks. The SDBS database is also highlighted as a valuable resource for accessing IR and NMR spectra of common compounds.

PREREQUISITES
  • Understanding of infrared (IR) spectroscopy principles
  • Familiarity with chemical compounds: benzaldehyde, cinnamaldehyde, benzophenone, cyclohexanone, acetophenone
  • Knowledge of spectral databases: Sadtler, NIST, Aldrich
  • Experience with interpreting spectral data
NEXT STEPS
  • Explore the Sadtler database for IR spectra of organic compounds
  • Learn how to use the NIST Chemistry WebBook for spectral data
  • Investigate the Aldrich library of FT-IR spectra for detailed compound information
  • Review the SDBS database for additional IR and NMR spectra resources
USEFUL FOR

Chemists, researchers, and students in organic chemistry seeking to identify functional groups and bonds in compounds through IR spectroscopy.

OH group student
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i'm having fierce trouble trying to obtain information as to the peaks/bonds in the IR spectra of the following; benzaldehyde, cinnamaldehyde, benzophenone, cyclohexanone and acetophenone.

i keep typing in plenty of the keywords in the various search engines but to no avail.

all i need is a rough guide as to which peaks belong to which bonds!

can anyone provide a decent link to help me out?
thanks
 
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Try the sadtler database or the NIST, I think Merck and Aldrich has some good databases for these types of spectra. The thing is, they may have obtained the spectra in a different context, such as different solvents, for which there may be shifts in the wavelength peaks.

If this was for an experiment, you should have obtained each respective compound spectra independently.
 
IR spectra are usually observed with neat material if they are liquids or oils, which all of those are. You should certainly check to see that the specta are neat, however.

You should check out the SDBS, they have tons of IR and NMR spectra for common compounds.

http://www.aist.go.jp/RIODB/SDBS/cgi-bin/cre_index.cgi
 
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thanks a lot, will check em out.
:smile:
 
Book

The Aldrich library of FT-IR spectra
 

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