Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}}

Details Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}} Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}}

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mss..confewf02m&link_type=abstract

"International Symposium On Molecular Spectroscopy, 64th Meeting, Held 22-26 June, 2009 at Ohio State University. http://molspec

Computer Science

Dynamics

Scientific paper

We report photofragmentation studies of mass-selected \chem{ICN^{-}(CO_{2})_{n}} (n=0-18) cluster anions following 400, 500 and 600 nm excitation. Photodissociation of \chem{ICN^{-}} following excitation via a 500 nm photon results exclusively in an \chem{I^{-}} anionic photoproduct. However, excitation at either 400 nm or 600 nm results in 30% \chem{CN^{-}} and 70% \chem{I^{-}} anionic photoproducts. Complexation of \chem{ICN^{-}} with two or more \chem{CO_{2}} molecules opens a third product channel, recombination of the chromophore on the ground state, a channel that is observable at all three photon energies. The product branching ratios for photodissociation of \chem{ICN^{-}(CO_{2})_{n}} show sharp contrast to trends previously observed in dihalide studies of \chem{IBr^{-}(CO_{2})_{n}} and \chem{I_{2}^{-}(CO_{2})_{n}}, but are strikingly similar to results found for \chem{ICl^{-}(CO_{2})_{n}}. Notably, a peak in the percentage of recombined photoproducts observed as a function of the number of solvent molecules shifts to larger n values as photon energy increases and does not reach 100% in the first solvation shell. It is likely that an intracluster reaction involving formation of the molecule \chem{NCCO_{2}^{-}} plays a significant role in the dynamics observed following excitation of the \chem{ICN^{-}(CO_{2})_{n}} anion. Supported by NSF and AFOSR

Affiliated with

Also associated with

No associations

Rating

Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}} does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}}, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photofragmentation Dynamics of \chem{ICN^{-}(CO_{2})_{n}} will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1642864