Spectroscopic Detection of Cyano-Cyclopentadiene Ions as Dissociation Products upon Ionization of Aniline.

ABSTRACT: The H-loss products (C₆H₆N⁺) from the dissociative ionization of aniline (C₆H₇N) have been studied by infrared predissociation spectroscopy in a cryogenic ion trap instrument at the free electron laser for infrared experiments (FELIX) laboratory. Broadband and narrow line width vibrational spectra in the spectral fingerprint region of 550-1800 cm^-1 have been recorded. The comparison to calculated spectra of the potential isomeric structures of the fragment ions reveals that the dominant fragments are five-membered cyano-cyclopentadiene ions. Computed C₆H₇N^•+ potential energy surfaces suggest that the dissociation path leading to H loss starts with an isomerization process, following a similar

SUBMITTER: Rap DB 

PROVIDER: S-EPMC9125686 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature