Photoionization mechanisms for Cr(CO)6 using high intensity laser pulses in the near-IR

K. F. Willey, C. L. Brummel, N. Winograd

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

High intensity (i.e. 1013 W/cm2) picosecond and femtosecond laser pulses are utilized to study possible photoionization mechanisms of Cr(CO)6. This work represents the first example of excitation of a metal carbonyl with 800 nm photons where the ionization of intact molecular species dominates photofragmentation channels. With picosecond pulse excitation, however, attenuation of the laser power appears to induce a higher degree of fragmentation. The data can best be interpreted assuming two distinct photoionization mechanisms where MPI dominates at low laser powers and a transition occurs to barrier suppression ionization as the laser power is increased.

Original languageEnglish (US)
Pages (from-to)359-364
Number of pages6
JournalChemical Physics Letters
Volume267
Issue number3-4
DOIs
StatePublished - Mar 21 1997

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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