Journal of Physical Chemistry p. 6237 - 6240 (1994)
Update date:2022-08-17
Topics:
Myli, K. B.
Grassian, V. H.
We have investigated the photodissociation of chlorobenzene and 3-chloropyridine adsorbed on smooth and rough Ag surfaces.Photolysis of adsorbed chlorobenzene and 3-chloropyridine with UV radiation results in C-Cl bond dissociation.Biphenyl and bipyridyl desorb from the surface near 400 K, and AgCl desorbs near 800 K in postirradiation temperature-programmed desorption.Compared to a smooth surface, there is a red shift in the photodissociation threshold for both molecules when adsorbed on a rough surface.Possible mechanisms for the red shift are discussed.This study demonstrates the importance of substrate morphology on surface photochemistry.
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