Ultrafast mid-IR detection of the direct precursor to the presolvated electron following electron ejection from ferrocyanide

Neil A. Anderson, Kun Hang, John B. Asbury, Tianquan Lian

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Excitation of Fe(CN)64- complex in D2O solution with a 267 nm ultrashort laser pulse results in rapid charge-transfer-to-solvent, and subsequent electron hydration. Mid-IR transient absorption spectroscopy is used to investigate the ejection and earliest steps in electron solvation. A broad, intense absorption signal is observed with instrument-response-limited rise and 170±20 fs single exponential decay at all probe wavelengths studied, stretching from ~3 to 7 μm. No significant solvent isotope dependence in the time-evolution was seen. The spectral and temporal characteristics of the mid-IR signal provide strong evidence that it arises from a step in solvation immediately preceding formation of the presolvated electron.

Original languageEnglish (US)
Pages (from-to)386-392
Number of pages7
JournalChemical Physics Letters
Volume329
Issue number5-6
DOIs
StatePublished - Oct 27 2000

All Science Journal Classification (ASJC) codes

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

Fingerprint Dive into the research topics of 'Ultrafast mid-IR detection of the direct precursor to the presolvated electron following electron ejection from ferrocyanide'. Together they form a unique fingerprint.

Cite this