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Chem. shifts and scalar coupling consts. were extd. by symmetry mapping of multiplets in 2-dimensional NMR spectra. The procedure relies on the fact that, in addn. to symmetry with respect to the centers of the multiplets, substructures embedded within the ...
Heteronuclear 2-dimensional NMR was used to correlate the 1H and 31P chem. shifts of cellular phosphates. Exptl. spectra agree with theor. predictions based on a novel approach using subspectral anal. The spectra are sensitive to the homonuclear scalar cou ...
For high-resoln. 13C NMR spectroscopy under conditions of complete proton decoupling, gated decoupler and proton flip methods are described which demonstrate that heteronuclear J spectroscopy can provide fine structure information even in very inhomogeneou ...
A technique is proposed which simplifies the study of spin-lattice relaxation in multilevel nuclear spin systems. The introduction of non-participating "spy" nuclei, which interact with the nuclei under investigation through scalar or dipolar coupling, m ...
Proton-coupled 13C NMR spectra were studied by a technique which involves Fourier transformation of spin echo modulation. When the protons are strongly coupled, the "proton flip" version of this expt. generates a new form of 13C spectrum which is quite d ...
