Morphology Effects on the Spectroscopy and Dynamics of HCl in an Argon Matrix
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Date
1994
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Ohio State University
Abstract
The effects of the structure and form of the host argon matrix on the spectroscopy, thermal dynamics, and photodissociation dynamics of HCl are reported. Raman spectra are used to identify monomer, dimer and higher order clusters of HCl in the matrix. Annealing the matrix at 30 K for 5 minutes shows a shift of population from monomer and low order clusters to large solid-like clusters. Models show that this process is expected to be defect driven. Laser induced fluorescence of $Cl_{2}$ and the Raman spectra are used to monitor the photodissociation of (HCl)$_{n}$ clusters to form $Cl_{2}$. The formation of $Cl_{2}$ monomers from $(HCl)_{2}$ dimers is distinguishable from photodissociation of larger (HCl)$_{n}$ cluster.
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Author Institution: Dept. of Chemistry, Emory University