Author: Bax, A.; Freeman, R.
Description: Proton-proton couplings in a sample of 9-hydroxytricyclodecan-2,5-dione were studied by the two-dimensional Fourier transform method proposed by Jeener. Various techniques were tested for reshaping the two-dimensional responses to remove the long dispersion-mode tails, and to emphasize cross-peaks at the expense of diagonal peaks. Operation with a mixing pulse of relatively small flip angle allows relative signs of coupling constants to be determined by inspection of the two-dimensional spectrum. Weak long-range couplings, normally hidden within the linewidth, may be detected, although their magnitudes can only be estimated very approximately. A simple modification of the pulse sequence permits broadband decoupling in one frequency dimension, giving proton spectra without any J splittings.
Subject headings:
Publication year: 1981
Journal or book title: Journal of Magnetic Resonance (1969)
Volume: 44
Issue: 3
Pages: 542-561
Find the full text :Â https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.704.9448&rep=rep1&type=pdf
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Type: Journal Article
Serial number: 1755