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Digitale Medien

Measurement of inter-proton distances from cross-relaxation rates determined by a selective null inversion-recovery NMR method (1992)

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

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 30 (1992), S. 173-176

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Details

ISSN: 0749-1581

Schlagwort(e): NMR ; Relaxation ; Selective pulses ; Distance ; Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: 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.

Zusätzliches Material: 1 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/mrc.1260300215

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