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
When a High Energy Electron Impacts Molecule M in the ...
Which Compound Would You Expect to See a Broad Absorption ...
What IR Absorption Is Characteristic of the C=O Stretch in ...
Which of the Following Molecules Has a Characteristic Stretch at ...
Relative Abundance Is the Unit Along the Y-Axis in a ...