A direct experimental evidence for an aromatic C-H⋯O hydrogen bond by fluorescence-detected infrared spectroscopy

V. Venkatesan, A. Fujii, T. Ebata, N. Mikami

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

Formation of a weak aromatic C-H⋯O hydrogen bond has been discerned both experimentally and computationally in the 1,2,4,5-tetrafluorobenzene (TFB)-water system. The intermolecular structure of the isolated TFB-water cluster in a supersonic jet was characterized using fluorescence-detected infrared spectroscopy. The formation of a weak hydrogen bond in the cluster was directly evidenced by a low-frequency shift and intensity enhancement of the hydrogen-bonded aromatic C-H stretch in the TFB moiety. This is the first direct observation of an aromatic C-H⋯O hydrogen bond in isolated gas phase clusters.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalChemical Physics Letters
Volume394
Issue number1-3
DOIs
Publication statusPublished - 2004 Aug 11

ASJC Scopus subject areas

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

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