UV Raman spectrum of 1,3-dimethylcyclopentenyl cation adsorbed in zeolite H-MFI

Yek Tann Chua, Peter C. Stair*, John B. Nicholas, Weiguo Song, James F. Haw

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


The first Raman spectrum of an adsorbed carbenium ion has been measured: The 1,3-dimethylcyclopentenyl cation adsorbed in zeolite H-MFI. 1,3-Dimethylcyclopentenyl cation has been observed as a component of the hydrocarbon pool formed during the methanol-to-gasoline process catalyzed by zeolite H-MFI. The Raman shifts recorded for 1,3-dimethylcyclopentenyl cation are in remarkable agreement with computer calculations of the vibrational band positions for the isolated cation. This agreement suggests that the cation is unperturbed by interactions with the zeolite pore walls so that Raman spectra of free or solution-phase hydrocarbons can be used to identify these same species adsorbed in zeolite pores.

Original languageEnglish (US)
Pages (from-to)866-867
Number of pages2
JournalJournal of the American Chemical Society
Issue number4
StatePublished - Jan 29 2003

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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