Studies of chemical exchange by nuclear magnetic relaxation in the rotating frame

1970/04/01 by C. Deverell, R.E. Morgan, J.H. Strange +1 · 5 citations
Physics and Astronomy · Chemistry · #NMR spectroscopy and applications #Advanced NMR Techniques and Applications #Molecular spectroscopy and chirality

paper · doi:10.1080/00268977000100611

Abstract

The exchange of protons between sites with different chemical shift is studied by means of N.M.R. relaxation time measurements (T 1ρ ) in the presence of an r.f. magnetic field. The system studied is chair-to-chair isomerization in cyclohexane. The exchange rate and chemical shift are measured in the temperature range 215°k to 250°k. The method is compared with other N.M.R. techniques for studying chemical exchange and is found to have advantages particularly at high exchange rates.

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