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The Photodissociation of Pyridine at 193 nm
Author(s) -
Prather Kimberly A.,
Lee Yuan T.
Publication year - 1994
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199400008
Subject(s) - chemistry , photodissociation , pyridine , benzene , heteroatom , photochemistry , ring (chemistry) , molecule , spectroscopy , medicinal chemistry , organic chemistry , physics , quantum mechanics
Using photofragmentation translational spectroscopy, the primary processes involved in the photodissociation of pyridine are investigated at 193 nm. Upon absorption of a single photon, HCN + C 4 H 4 , CH 3 + C,H 2 N, C 3 H 3 + C 2 H 2 N, and H + C 5 H 4 N are the observed primary pathways, with relative yields of 59%, 21%, 11%, and 9%, respectively. This paper reports the experimental details and results of this study. Comparison of the results of this study with a previous study in our laboratory investigating the photolysis of benzene serves as a direct measure of the strong influence substitution of a heteroatom in an aromatic ring can have on a molecule's photochemistry.