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Abstract The argon dimer cation is produced in a plasma generated by a laser spark in a supersonic expansion. The cold ions are mass selected and investigated by photodissociation at… Click to show full abstract
Abstract The argon dimer cation is produced in a plasma generated by a laser spark in a supersonic expansion. The cold ions are mass selected and investigated by photodissociation at 355 nm, with velocity map imaging of the Ar+ photofragment. Using the radius of the image, we determine the kinetic energy release and derive the ground state dissociation energy of Ar2+ as D0″ = 1.32 +0.03/−0.02 eV. Additionally, the angular distribution is described with β = 1.71–1.95, consistent with excitation of the parallel-type 2Σg+ ← 2Σu+ transition.
Journal Title: Chemical Physics Letters
Year Published: 2017
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