From each IR spectra shown in Spectra B, perform analysis with the help of table 8.1 and or 5 Zone analysis, predict the possible chemical structure of the existing spectra (may suggest more than 1 possible structure)
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
IR Spectrum Of Cyclohexanone
It is the analysis of the structure of cyclohexaone using IR data interpretation.
IR Spectrum Of Anisole
Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
![TABLE 8.1 Some Easily Recognizable IR Absorption Patterns
Bond
Description of Peak
-C-H, where C is not part of a benzene ring Sharp, strong peak on the low side of 3000 cm", between about 2850
and 3000 cm
Sharp, medium peak on the high side of 3000 cm", between about 3000
and 3100 cm
Sharp, medium peak on the high side of 3000 cm", between about 3250
and 3300 cm
Broad, strong peak centered at about 3300 cm
-C-H, where C is part of a benzene ring or
double bond
-C-H, where C is part of a triple bond
-O-H, in alcohols, phenols, and water, for
example
-C=0, in aldehydes, ketones, etc.
-C-C-, in benzene rings
Sharp, strong peak at about 1700 cm
Two sharp, strong peaks near 1500 and 1600 cm", a series of weak peaks
(called overtones) between 1600 and 2000 cm", the latter in the case
of a mono-substituted benzene ring](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8218185c-6f78-4dab-be4d-556daaf39b4b%2F9e107075-5150-4f11-8029-a097cd35a711%2Fb7ivjul_processed.jpeg&w=3840&q=75)
![Spektra B
80-
40
20-
4000
3500
3000
2500
2000
1500
1000
500
Wavenumbers
FLOCEE UOCU O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8218185c-6f78-4dab-be4d-556daaf39b4b%2F9e107075-5150-4f11-8029-a097cd35a711%2Fv6vuk3k_processed.jpeg&w=3840&q=75)
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