10) Which of the following compounds would contain characteristic IR stretches at 3300 and 2170 cm-1? A) CH3CH2CHO B) CH3CH=CHCH2OH C) (CH3)2CHC=N D) CH3CH2CH2C=CH E) CH3C=CCH2CH3 11) Which compound would be expected to show intense IR absorption at 1660 cm-1? B) CH3CH2C=N A) CH3CH2OCH2CH3 C) CH3CO2CH2CH3 D) CH3CH2CONH2 E) CH3COCH2CH3 12) What major functional groups are represented in the following IR spectrum? 2 6 o 14 8 12 HSP-04-102 ppm (c) para-methyl benzoic (a) Para-methyl acetophenone (b) meta-methyl acetophone acid (d) ortho-methyl benzoic acid (e) meta-methyl benaldehyde (c) 3-ethyl-2-hexene 13) Which one of the following compounds shows the absence of molecular ion in the MS? (a) 3-bromo-2-methyl pentane (b) 4-ethyl-cyclohexanol
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).
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