Systematic trends in photonic reagent induced reactions in a homologous chemical family

Katharine Moore Tibbetts, Xi Xing, Herschel Albert Rabitz

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Abstract

The growing use of ultrafast laser pulses to induce chemical reactions prompts consideration of these pulses as "photonic reagents" in analogy to chemical reagents. This work explores the prospect that photonic reagents may affect systematic trends in dissociative ionization reactions of a homologous family of halomethanes, much as systematic outcomes are often observed for reactions between homologous families of chemical reagents and chemical substrates. The experiments in this work with photonic reagents of varying pulse energy and linear spectral chirp reveal systematic correlations between observable ion yields and the following set of natural variables describing the substrate molecules: the ionization energy of the parent molecule, the appearance energy of each fragment ion, and the relative strength of carbon-halogen bonds in molecules containing two different halogens. The results suggest that reactions induced by photonic reagents exhibit systematic behavior analogous to that observed in reactions driven by chemical reagents, which provides a basis to consider empirical "rules" for predicting the outcomes of photonic reagent induced reactions.

Original languageEnglish (US)
Pages (from-to)8205-8215
Number of pages11
JournalJournal of Physical Chemistry A
Volume117
Issue number34
DOIs
StatePublished - Aug 29 2013

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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