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dc.creatorAmicangelo, Jay C.en_US
dc.creatorBahou, Mohammeden_US
dc.creatorGolec, Barbaraen_US
dc.creatorLee, Yuan-Pernen_US
dc.descriptionAuthor Institution: School of Science, Penn State Erie, Erie, PA 16563; Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan and Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwanen_US
dc.description.abstractThe reaction of chlorine atoms with ethylene and two of its deuterium isotopomers in solid $para$-hydrogen ($p$-H$_{2}$) matrices at 3 K has been studied using infrared spectroscopy. Irradiation at 365 nm of a co-deposited mixture of Cl$_{2}$, C$_{2}$H$_{4}$, and $p$-H$_{2}$ at 3 K produces a series of new lines in the infrared spectrum. Several of the new lines are readily assigned to the gauche and trans conformers of 1,2-dichloroethane (CH$_{2}$ClCH$_{2}$Cl) resulting from the addition of two Cl atoms to C$_{2}$H$_{4}$. Of the remaining lines, a strong line at 664 cm$^{-1}$ and three weaker lines at 562, 1070, and 1228 cm$^{-1}$ are concluded to be due to a single carrier based on their behavior upon subsequent annealing to 4.5 K and irradiation at 254 and 214 nm. When the positions and intensities of these lines are compared to the MP2/aug-cc-pVDZ predicted vibrational spectra of the possible species that could result from the addition and abstraction reactions of one Cl atom with C$_{2}$H$_{4}$, 10842 (2000)}, the best agreement is found with the 2-chloroethyl radical ($\cdot$CH$_{2}$CH$_{2}$Cl). In order to confirm this assignment, isotopic experiments were performed with C$_{2}$D$_{4}$ and t-C$_{2}$H$_{2}$D$_{2}$ and the corresponding infrared bands due to the deuterium isotopomers of this radical ($\cdot$CD$_{2}$CD$_{2}$Cl and $\cdot$CHDCHDCl) have been observed. A final set of experiments were performed following irradiation of the Cl$_{2}$/C$_{2}$H$_{4}$/$p$-H$_{2}$ mixture at 365 nm, in which the matrix was irradiated with filtered infrared light from a globar source, which has been shown to induce a reaction between isolated Cl atoms and matrix H$_{2}$ to produce HCl and H atoms, 3124 (2006)}. In our experiments, the major products observed were HCl and ethyl chloride (CH$_{3}$CH$_{2}$Cl) and the possible mechanism of the formation of ethyl chloride will be discussed.en_US
dc.publisherOhio State Universityen_US

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