Photoionization Studies of CH_3Cl Using Synchrotron Radiation——Measurements of Ionic Formation Enthalpies and Bond Energies

The kinetic processes of the photoionization and photodissociation ionization of CH3Cl have been investigated under the supersonic beam conditions using synchrotron radiation. Theionization energy of CH3Cl is 11.28 ± 0.01eV.Based on the measured appearance potential (AP) of the ionic fragments, the related formation enthalpies of the ionic species, the bond dissociation energy (BDE) of ionic and neutral species, and the dissociation energy (DE) of parent ion have been evaluated. The most possible channel of dissociation photoionization were analyzed.