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Solution: Deuterium (D) is an isotope of hydrogen, in which the nucleu...

Question

Deuterium (D) is an isotope of hydrogen, in which the nucleus has one proton and one neutron. This nucleus, called a deuteron, behaves very much like a proton, although there are observed differences in the rates of reactions involving either protons or deuterons (an effect called the kinetic isotope effect). Deuterium can be introduced into a compound via the process below:

(b) The IR spectrum of compound 4 exhibits a group of signals between 1250 and 1500 cm -1, a signal at 2180 cm-1, and another group of signals between 2800 and 3000 cm -1. Identify the location of the C-D signal in the spectrum and explain your reasoning (J. Chem. Ed. 1981, 58, 79–80).