Département de Recherche Fondamentale Section de Résonance Magnétique, Centre d'' Etudes nucléaires de Grenoble, F 38041 Grenoble Cedex, France
Abstract:
Measurements of the transition probabilities of all the IR bands of adipic acid crystals, polarized in the a, c plane and having frequencies in the range 1000–4000 cm?1show that the anomalous value PH/PD= 2 found for the ratio of the transition probabilities of νs bands and cannot be due to a harmonic coupling of νs vibrations with other vibrations.