The FT-IR Spectrum of H13C15NO in the ranges 1800–3600 and 6300–7000 cm−1

Abstract

The midinfrared spectrum of H13C15NO, an isotopically substituted species of fulminic acid, has been analyzed in the ranges 1800–3600 and 6300–7000cm−1. More than 9000 infrared lines have been assigned, which makes it possible to identify more than 80 new vibrational levels. Power series constants of these levels are given. Each vibrational level with its rotational levels is globally or locally perturbed. Most of the interactions are part of resonance systems. Three resonance systems of H13C15NO (00105/01011, 10003 and 10011) are presented, as well as a comparison with the corresponding resonance systems of HCNO and H13CNO. In addition, an analysis of the 2ν1 band system and a comparison of the basic Coriolis-type resonances v1v2v302/v1v2v310 and Fermi-type resonances v1v2v3v40/v1v2(v3−1)v44 are discussed for the three isotopomers HCNO, H13CNO and H13C15NO.