Abstract
The fundamental plus the doubled output of a pulsed dye laser have been used to induce two-photon, laser-assisted reactions in low pressure gas mixtures of Xe with Br 2, CCl 4, CCl 3Br, CCl 2Br 2 and I 2. The products are XeCl(B, C), XeBr(B, C) or XeI(B, C) following two-photon promotion to the reactive ion-pair potentials. The utilization of a two-color scheme enhances the two-photon, laser-assisted reactions because of better match with an intermediate state of the reagent molecule. Product selectivity with a propensity for XeCl(B, C) formation from CCl 3Br and CCl 2Br 2 by the laser-assisted reactions, relative to the full collisions with Xe(6s) or Xe(6p) atoms, is demonstrated.
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