Sousa, J. N.Ribeiro, L. C.Arruda, Manuela S.Homem, M. G. P.Tanaka, H. K.Credidio, B. C.Marinho, R. R. T.Medina, AlinePrazeres, I.Santos, A. C. F.Prudente, F. V.2019-07-172019-07-172019-07-172019-06-2010.1021/acs.jpca.9b03778https://infoscience.epfl.ch/handle/20.500.14299/159194WOS:000472800600017We have performed an experimental investigation into the interaction of vacuum-ultraviolet synchrotron radiation with pyridine molecules in the gas phase. Specifically, a double-ion chamber spectrometer was used to measure the absolute photoabsorption cross sections and the photoionization quantum yields from the ionization threshold to 21.5 eV. Moreover, photoionization and neutral-decay cross sections in absolute scale were derived from these data. In addition, the fragmentation pattern was investigated as a function of the photon energy by using a time-of-flight mass spectrometer and the photoelectron-photoion coincidence technique. Thus, the absolute partial ionization cross sections for each ionic fragment were obtained. Comparisons are made with experimental data available in the literature.Chemistry, PhysicalPhysics, Atomic, Molecular & ChemicalChemistryPhysicsprecision-measurementssynchrotron-radiationionizationspectrafragmentationphotoelectronazabenzenesexcitationmoleculeskrtext::journal::journal article::research article