Analytical Chemistry

(Chris Devlin) #1
Figure 9.20
Infrared spectrum of n-propyl alcohol.

Figure 9.21
Infrared spectrum of n-undecanal.

Figure 9.22
Infrared spectrum of n-nonanoic acid.

between 1200 and 1300 cm–^1 is considerably intensified. It should be noted that in the spectra of acids
the C—H stretching band is frequently observed as a sharp peak above the broad O—H band.


The final spectrum (Figure 9.24) is that of p-nitroaniline. Although complex it is immediately
recognizable as being aromatic (C–H above

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