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Measurement of inter‐proton distances from cross‐relaxation rates determined by a selective null inversion–recovery NMR method by Maili Liu; R. Duncan Farrant; John C. Lindon is a Chemistry article available to read on EtoBox.

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## Abstract An efficient method of measuring proton spin–lattice cross‐relaxation rates in small molecules is proposed. The method involves measuring the difference in relaxation rates in a non‐selective experiment and in one with all resonances except one of interest inverted. This procedure yields cross‐relaxation rates between this nucleus and all other nuclei. These rates are independent of the effects of non‐excited heteronuclei and of non‐dipolar contributions and can be used to determine relative inter‐proton distances. The method was tested using 7‐azaindole and compared favourably with the standard NOE method for estimating proton proximities requiring less data acquisition time.

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Author

Maili Liu; R. Duncan Farrant; John C. Lindon

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; John Wiley and Sons Ltd; Wiley (ISSN 0749-1581)

Published

1992

Language

EN

Field

Chemistry (Physical Sciences)