Determination of chemical shift of gas-phase hydrogen molecules by 1H nuclear magnetic resonance

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Abstract

The precise and detailed chemical shift of gas-phase hydrogen molecules was successfully determined by 1H nuclear magnetic resonance (NMR), avoiding the intervention of neighboring molecules such as in hydrogen occluding materials (free hydrogen). The measurement was conducted with double walled NMR sample tube taking into consideration the change of hydrogen pressure. The inner tube was filled with standard substance (DHO in D2O at 4.8 ppm). The chemical shift of free hydrogen molecules was determined to be 7.40 ± 0.01 ppm at 0.18 MPa, 25 °C, which is different from previously reported chemical shifts of hydrogen gas with intervention of neighboring molecules.

Original languageEnglish
Pages (from-to)42-44
Number of pages3
JournalChemical Physics Letters
Volume498
Issue number1-3
DOIs
Publication statusPublished - Sep 30 2010

All Science Journal Classification (ASJC) codes

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

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