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

Hirotada Fujiwara; Junichiro Yamabe; Shin Nishimura

doi:10.1016/j.cplett.2010.08.054

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

Hirotada Fujiwara, Junichiro Yamabe, Shin Nishimura

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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 language	English
Pages (from-to)	42-44
Number of pages	3
Journal	Chemical Physics Letters
Volume	498
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2010.08.054
Publication status	Published - Sep 30 2010

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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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.",

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AU - Fujiwara, Hirotada

AU - Yamabe, Junichiro

AU - Nishimura, Shin

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Y1 - 2010/9/30

N2 - 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.

AB - 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.

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