CEQUINOR   05415
CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
artículos
Título:
Dissociative Photoionization of Methyl Thiocyanate, CH3SCN in the Proximity of the Sulfur 2p Edge
Autor/es:
CORTÉS, EMILIANO; GERONÉS MARIANA; ERBEN, MAURICIO FEDERICO; ROMANO, ROSANA MARIEL; DELLA VÉDOVA, CARLOS OMAR
Revista:
JOURNAL OF PHYSICAL CHEMISTRY A
Editorial:
American Chemical Society
Referencias:
Año: 2009 vol. 113 p. 564 - 564
ISSN:
1089-5639
Resumen:
The dissociative photoionization of gaseous CH3SCN has been investigated at the S 2p core level using time-of-flight mass spectrometry and synchrotron radiation. The total ion yield spectrum could be successfully assigned by comparison with available data from electron energy loss spectra. The relative abundances of the ionic fragments and their kinetic energy release values were obtained from both PEPICO (photoelectron photoion coincidence) and PEPIPICO (photoelectron photoion photoion coincidence) spectra. The dynamics of the ionic fragmentation of S 2p excited CH3SCN is dominated by the rupture of both carbon-sulfur bonds. This process may be related with electronic excitations from the ground electronic state to vacant sigma* molecular orbitals.