Structures and reactions of methanol molecules on cobalt cluster ions studied by infrared photodissociation spectroscopy

Shinichi Hirabayashi, Ryuji Okawa, Masahiko Ichihashi, Yoshiyuki Kawazoe, Tamotsu Kondow

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12 Citations (Scopus)

Abstract

Structures of methanol molecules chemisorbed on cobalt cluster ions, Con + (n=2-6), were investigated by infrared photodissociation (IR-PD) spectroscopy in the wavenumber range of 3400-4000 cm-1. All the IR-PD spectra measured exhibit an intense peak in the region of the OH stretching vibration. In the IR-PD spectra of Co2+ (CH3OH)2,3 and Co3+ (CH 3OH)3, weak peaks were observed additionally in the vicinity of 3000 cm-1, being assignable to the CH stretching vibration. The comparison of the experimental results with the calculated ones leads us to conclude that (1) molecularly chemisorbed species, Co n+ (CH3OH)m (m=1-3), and dissociatively chemisorbed species, Con+ (CH 3OH)m-1 (CH3) (OH), are dominant and (2) the methanol dehydrogenation proceeds via an intermediate, Con + (CH3) (OH).

Original languageEnglish
Article number164304
JournalJournal of Chemical Physics
Volume130
Issue number16
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

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

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