The Rotational Spectra of Fluorinated Acetonitriles; 14N-nuclear Quadrupole Hyperfine Structures Measured with a Microwave Fourier Transform Spectrometer

Abstract

Abstract The microwave spectra of CF3CN, CH2FCN, CHDFCN, CD2FCN and CHF2CN have been measured and analysed. The nuclear quadrupole hyperfine splittings due to 14N have been measured by Microwave Fourier Transform spectroscopy. The nuclear quadrupole coupling constants, transformed to the bonding axis systems of the C-C ≡ N groups, are shown to be in accord with structural predictions of the p-electron populations at the nitrogen atom.