Time-resolved dynamics in acetonitrile cluster anions (CH3 CN)n-

Ryan M. Young, Graham B. Griffin, Aster Kammrath, Oli T. Ehrler, Daniel M. Neumark*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Excited state dynamics of acetonitrile cluster anions, (CH3 CN)n-, were investigated using time-resolved photoelectron imaging (TRPEI) for 20 ≤ n ≤ 50. The clusters were excited and then photodetached with femtosecond pump and probe pulses at 790 and 395 nm, respectively. Excited state lifetimes varied between 200 and 270 fs over this size range, showing no obvious size trend. Experimental evidence indicates that we are exciting 'isomer II' clusters in which the excess electron is valence-bound to a solvated anionic dimer core. The absence of an obvious size-dependence in the excited state lifetimes is consistent with such a structure.

Original languageEnglish (US)
Pages (from-to)59-63
Number of pages5
JournalChemical Physics Letters
Issue number1-3
StatePublished - Jan 18 2010

ASJC Scopus subject areas

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


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