The structure of cyclopropyl cyanide has been determined by a variety of experiments, including microwave spectroscopy, rotational spectroscopy and photodissociation. In 1958, cyclopropyl cyanide was first studied for its rotational spectra, by Friend and Dailey. An additional experiment involving cyclopropyl cyanide was the determination of the molecular dipole moment through spectroscopy experiments, by Carvalho in 1967.