Multiphoton dissociation of Coronene

The multiphotoionization and multiphotodissociationof Coronene (C24H12) induced by laser interaction were analyzed with a Time of Flight Mass Spectrometer in reflectron mode. A beam of molecules was synchronized with laser radiation of 266nm with intensities between $\mbox{1.7}\times \mbox{10}^{\mbox{9}}$and$\mbox{2.7}\times \mbox{10}^{\mbox{10}}W/cm^{\mbox{2}}$. The resolution reached allowed to identify more than 300 ions, produced by the photofragmentation. The analysis of relative currents, by ion groups and by specific ions, allowed the experimental verification of dissociationroutes where prevail products CnHm with $n=\mbox{16}-\mbox{24}$for low intensities, and $n=\mbox{1,2,3,4}$for high intensities. At low intensities, the presence of C16H4, C16H10, C16H12, C17H6, C17H8, C22H2, C23H4, C23H8, C24H6, C24H8, C24H10, C24H12 ions are remarkable. In addition, ions with mass greater than 300 accounts for the presence of Coronene clusters. The present work was supported by grant PAPIIT UNAM grants IN101215 and IN102516.