Asked by Ashley Klawetter on May 07, 2024
Verified
Which compound lacks a strong, characteristic IR absorption near 1700 cm-1?
A) CH3CH2CO2H
B) CH3CH2CHO
C) (CH3CH2) 2C=O
D) (CH3CH2) 2O
E) H3CH2CO2CH3
Characteristic IR Absorption
The specific frequency at which a molecule absorbs infrared light, indicative of particular bonds or functional groups within the molecule.
- Analyze the properties of infrared absorption pertinent to chemical bonds and functional groups.
- Learn about the dependence of IR spectral characteristics on molecular structure.
- Separate compounds according to their infrared absorption features.
Verified Answer
ZK
Zybrea KnightMay 07, 2024
Final Answer :
D
Explanation :
The compound in choice D lacks a carbonyl group (C=O), which is responsible for the strong IR absorption near 1700 cm^-1. Choices A, B, C, and E all contain a carbonyl group, which would exhibit this characteristic absorption.
Learning Objectives
- Analyze the properties of infrared absorption pertinent to chemical bonds and functional groups.
- Learn about the dependence of IR spectral characteristics on molecular structure.
- Separate compounds according to their infrared absorption features.
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