@article{7259,
  author = {Alvaro Galué and O. Pirali and J. Oomens},
  title = {Gas-phase infrared spectra of cationized nitrogen-substituted polycyclic aromatic hydrocarbons},
  abstract = {Gas-phase infrared spectra of several ionized nitrogen substituted polycyclic aromatic hydrocarbons (PANHs) have been recorded in the 600-1600 cm(-1) region via IR multiple-photon dissociation (IRMPD) spectroscopy. The UV photoionized PANH ions are trapped and isolated in a quadrupole ion trap where they are irradiated with an IR free electron laser. The PANHs were studied in their radical cation (PANH(+)) and protonated (H+ PANH) forms, and include quinoline, isoquinoline, phenanthridine, benzo[h] quinoline, acridine, and dibenzo[f,h] quinoline. Experimental IRMPD spectra were interpreted with the aid of density functional theory methods. The PANH(+) IR spectra are found to resemble those of their respective non-nitrogenated PAH cations. The IR spectra of H+ PANHs are significantly different owing to the NH inplane bending vibration, which generally couples very well with the aromatic CH bending and CC stretching modes. Implications of the NPAH (+, H+) laboratory spectra are discussed for the astrophysical IR emissions and, in particular, for the band at 6.2 mu m.},
  year = {2010},
  journal = {Astronomy & Astrophysics},
  volume = {517},
  pages = {11},
  month = {Jul},
  isbn = {0004-6361},
  url = {<Go to ISI>://000280929400025 },
  note = {ISI Document Delivery No.: 638WRTimes Cited: 0Cited Reference Count: 69},
  language = {English},
}