Asked by Victoria Brungot on May 26, 2024
Verified
Which compound would be expected to show intense IR absorption at 3363, 3185, 1660 cm-1?
A) CH3CH2CH2OH
B) (CH3) 2CHNH2
C) CH3CH2CONH2
D) but-1-ene
IR Absorption
A phenomenon where molecules absorb infrared radiation at specific wavelengths, corresponding to vibrations of their chemical bonds; used in spectroscopy for molecule identification.
- Acquire knowledge of the basic principles behind IR spectroscopy and the connection between molecular vibrations and their absorption frequencies.
- Determine the characteristic infrared spectral absorptions of different functional groups.
Verified Answer
VK
Vishal KommulaMay 28, 2024
Final Answer :
C
Explanation :
The absorption at 3363 and 3185 cm^-1 corresponds to N-H stretching vibrations, and the absorption at 1660 cm^-1 corresponds to the C=O stretching vibration. These are characteristic of amides, which makes option C, an amide, the correct answer.
Learning Objectives
- Acquire knowledge of the basic principles behind IR spectroscopy and the connection between molecular vibrations and their absorption frequencies.
- Determine the characteristic infrared spectral absorptions of different functional groups.
Related questions
In Addition to a Carbonyl Stretch, Which of the Following ...
Which Has a Lower Characteristic Stretching Frequency, the C-H or ...
How Could IR Spectroscopy Be Used to Distinguish Between the ...
Which Compound Lacks a Strong, Characteristic IR Absorption near 1700 ...
Which Compound Would Be Expected to Show Intense IR Absorption ...