Compared to a C-H bond,a C-D bond will vibrate where in the infrared spectrum?
A)Higher molecular weight
B)Lower molecular weight
C)Lower wavenumbers
D)Higher wavenumbers

Question

Quizplus · Accepted Answer

The wavenumber of a bond vibration in the infrared spectrum is directly proportional to the bond's strength. A C-D bond is stronger than a C-H bond due to the higher electronegativity difference between carbon and deuterium compared to carbon and hydrogen. Therefore, the C-D bond will vibrate at a lower wavenumber (frequency) in the infrared spectrum.

Compared to a C-H Bond,a C-D Bond Will Vibrate Where