Infrared spectroscopy of size-selected neutral clusters combined with vacuum-ultraviolet-photoionization mass spectrometry

Yoshiyuki Matsuda, Mayumi Mori, Masaki Hachiya, Asuka Fujii, Naohiko Mikami

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Infrared (IR) spectroscopy of mass-selected neutral molecular clusters in supersonic beams is newly developed by combining a vacuum ultraviolet (VUV) photoionization. In this spectroscopy, the ion intensity of the mass-selected species is used as a measure of the population of the corresponding neutral cluster species. The IR excitation of the neutral species may cause the vibrational predissociation leading to the population reduction, which appears as a dip spectrum of the photoionization signal. This method can be called VUV-ionization detected IR predissociation spectroscopy (VUV-ID-IRPDS). The method is applied to the IR spectra of ammonia dimer and trimer.

Original languageEnglish
Pages (from-to)378-381
Number of pages4
JournalChemical Physics Letters
Volume422
Issue number4-6
DOIs
Publication statusPublished - 2006 May 10

ASJC Scopus subject areas

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

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