Estudo dos canais de dissociação das moleculas CS2 e SO2 apos fotoexcitação em torno da borda 1s do enxofre

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

We present the measured electron-ion coincidence spectra after photoexcitation of the SO2 and CS2 molecules around the S1s edge. A procedure for complete determination of all set of ions formed is described. The dissociation channels were determined and their behaviors with the photon energy to these molecules are presented in comparison with the Total Ion Yield (TIY). We observed a charge distribution with higher charge localized in the excitation atom for SO2 molecule. In CS2, similar effect was observed with charge distribution preferentially of asymmetric form. Auger cascade after the ls core hole creation leading to 2p double hole states need to be taken in to account to explain the observed selective charge distribution. This measurement were performed at the Soft X-Ray Spectroscopy-SXS beamline in the "Laboratório Nacional de Luz Síncrotron"-LNLS, in Campinas - Brasil

ASSUNTO(S)

dissociação radiação sincrotronica moleculas

ACESSO AO ARTIGO

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