Asked by oumou terra on Sep 28, 2024
Verified
Which of the following most closely matches the C 
C stretching frequency?
A) 3300 cm-1
B) 2950 cm-1
C) 2200 cm-1
D) 1600 cm-1
E) 1200 cm-1
C=C Stretching Frequency
Refers to the frequency at which the carbon-carbon double bonds in a molecule vibrate, typically observed in infrared spectroscopy.
IR Absorption
The absorption of infrared radiation by molecules, leading to changes in vibrational energy levels, used in spectroscopy to identify functional groups.
- Review the infrared absorption traits of chemical bonds and functional groups.
Verified Answer
GT
Gabriela Trejo1 day ago
Final Answer :
C
Explanation :
The C molecule is most likely a nitrile functional group, which has a C triple bond N group. The C-N stretching frequency for nitriles is typically around 2200-2260 cm-1, so choice C is the closest option. Choices A and B are too high for a C-H stretching frequency and choice D is too low for a C triple bond N stretching frequency. Choice E is not related to stretching frequencies for functional groups.
molecule is most likely a nitrile functional group, which has a C triple bond N group. The C-N stretching frequency for nitriles is typically around 2200-2260 cm-1, so choice C is the closest option. Choices A and B are too high for a C-H stretching frequency and choice D is too low for a C triple bond N stretching frequency. Choice E is not related to stretching frequencies for functional groups.
Learning Objectives
- Review the infrared absorption traits of chemical bonds and functional groups.
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