# THE NATURE OF PHOTOCHEMICAL ISOMERIZATION IN $ClO_{2}$

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 dc.creator Gole, James L. en_US dc.creator Hanner, Alfred en_US dc.creator Pace, S. A. en_US dc.date.accessioned 2006-06-15T14:16:24Z dc.date.available 2006-06-15T14:16:24Z dc.date.issued 1979 en_US dc.identifier 1979-TB-11 en_US dc.identifier.uri http://hdl.handle.net/1811/10990 dc.description $^{1}$ A. Arkell and J. Schwager, J. Am. Chem. Soc. 89, 5999 (1967). en_US dc.description Author Institution: en_US dc.description.abstract The photochemical isomerization of the symmetrical 0C10 isomer to produce unsymmetrical C100 will be discussed. Matrix isolation spectroscopic $studies^{1}$ of this isomerization process will be interpreted to indicate the possible presence of excited states in rare gas matrices. Preliminary gas phase studies will be presented. The results of extensive theoretical calculations indicate that the isomerization process corresponds to an initial sequence $$OC10 \tilde{X}^{2} B_{1} \stackrel{hv}{\rightarrow}OC10 \tilde{A}^{2} B_{2}$$ where the allowed nature of the transition (1) is the result of a Herzberg-Teller vibrionic coupling between the $A^{2}B_{2}$ and $B^{2}A_{1}$ states of 0C10 through the asymmetric stretch. Isomerization takes place on the $^{2}B_{2}$ potential resulting in the sequence $$OC10 \tilde{A}^{2}B_{2} \rightarrow C100 \tilde{A}^{2}A^{\prime\prime}$$ where a low-lying excited state of C100 1s formed. The $^{2}A^{\prime}$ state deactivates to vibrational levels $(v_{3} \geq 4, 0-0$ stretch) of the ground $^{2}A^{\prime}$ state of C100 which decay very slowly and can be monitored with infrared absorption $spectroscopy.^{1}$ en_US dc.format.extent 99755 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE NATURE OF PHOTOCHEMICAL ISOMERIZATION IN $ClO_{2}$ en_US dc.type article en_US