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).