The carbonyl stretching absorption is one of the strongest IR absorptions, and is very useful in structure determination as one can determine both the number of carbonyl groups (assuming peaks do not overlap) but also an estimation of which types.
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www.chem.ucla.edu/~webspectra/irtable.html
www.chem.ucla.edu/~webspectra/irtable.html
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Thus IR spectroscopy involves collecting absorption information and analyzing it in the form of a spectrum -- The frequencies at which there are absorptions of IR radiation ("peaks" or "signals") can be correlated directly to bonds within the compound in question.
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www.chem.ucla.edu/~webspectra/irintro.html
www.chem.ucla.edu/~webspectra/irintro.html
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Select an unknown and determine as much as you can about its structure from the infrared spectrum. A helpful table of characteristic IR frequencies can be found below...
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wwwchem.csustan.edu/Tutorials/INFRARED.HTM
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Infrared spectroscopy (IR spectroscopy) is the subset of spectroscopy that deals with the infrared region of the electromagnetic spectrum.
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en.wikipedia.org/wiki/Infrared_spectroscopy
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In physical and analytical chemistry, infrared spectroscopy ("IR spectroscopy") is a technique used to identify chemical compounds based on how infrared
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en.wikipedia.org/wiki/Infrared_spectroscopy_correlation...
en.wikipedia.org/wiki/Infrared_spectroscopy_correlation_table
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The information below for peaks which occur in the fingerprint region may be useful to confirm the presence of functional groups which also show peaks in...
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www.muhlenberg.edu/depts/chemistry/irexer/IRDATATB.htm
www.muhlenberg.edu/depts/chemistry/irexer/IRDATATB.htm
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Midi, mp3, avi...
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twinpeaks.heldir.com/
twinpeaks.heldir.com/
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Before beginning a detailed analysis of the various peaks observed in the functional group region, it might be useful to mentioned some of the factors that can influence the location and number of peaks we observe in infrared spectroscopy.
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www.umsl.edu/~orglab/documents/IR/IR2.html
www.umsl.edu/~orglab/documents/IR/IR2.html
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Acetophenone IR Spectrum and Vibrations ; Macintosh? Balls & Sticks ; Click on a peak to show the corresponding vibrations. Drag across part of the spectrum to expand it.
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www.umass.edu/microbio/chime/ir-spect/index.htm
www.umass.edu/microbio/chime/ir-spect/index.htm
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