NMR of molecules partially oriented in the gas phase

Peter C.M. van Zijl, C. MacLean, Cynthia Skoglund, Aksel A. Bothner-By

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The vapor phase 2H NMR spectra of monodeuterobenzene and pentadeuterofluorobenzene were recorded at 14.1 T. Reduction of the collision time, and thus of the linewidth, was accomplished by compressing the gas to 10.8 atm with ethane. The molecules are aligned by the field of the spectrometer and, as a consequence, quadrupolar couplings are recorded. Differences from the liquid-phase spectra arise in some of the quadrupolar splittings as well as in the scalar D-F couplings. It is rationalized that the deviating quadrupolar interaction cannot be caused by interactions resulting from incomplete quenching of the rotation, but originates from environmental effects on the quadrupolar coupling in the liquid. The results agree with recent microwave experiments.

Original languageEnglish (US)
Pages (from-to)316-325
Number of pages10
JournalJournal of Magnetic Resonance (1969)
Issue number2
StatePublished - Nov 1985
Externally publishedYes


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