Electronic excitation and ionic dissociation of the vanillin molecule: photoionization with flavor

29th International Conference on Photonic, Electronic, and Atomic Collisions

Betancourt, A. Moreno^1 ; Bernini, R.B.^2 ; Coutinho, L.H.^3 ; De Souza, G.G.B.^1

Instituto de Química, Universidade Federal Do Rio de Janeiro (UFRJ), Rio de Janeiro-RJ

21949-900, Brazil^1

Instituto Federal de Ciência e Tecnologia Do Rio de Janeiro (IFRJ), Duque de Caxias-RJ

25050-100, Brazil^2

Instituto de Física, Universidade Federal Do Rio de Janeiro (UFRJ), Rio de Janeiro-RJ

21941-972, Brazil^3

关键词: Electronic excitation;    Incident radiation;    Ionic dissociation;    Ionic fragmentation;    Ionization techniques;    Oxygen atom;    Time of flight mass spectrometry;    Valence energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112081/pdf
DOI  :  10.1088/1742-6596/635/11/112081

来源: IOP

【 摘 要 】

The electronic properties of vanillin molecule were investigated by different excitation and ionization techniques. The Ionic fragmentation mechanisms were studied using time-of-flight mass spectrometry as a function of the energy of the incident radiation in the valence energy region and the inner and core levels. It was stablished as a general feature that the ruptures related to the oxygen atoms are predominant at all energies. The resonances and ionization potential of the oxygen 1s was also determined by NEXAFS spectra.