Observation of spin exchange by two-dimensional fourier transform 13C cross polarization-magic-angle spinning

The solid-state cross polarization and magic-angle spinning analog of an earlier 2-D FT experiment on liquids is introduced. This technique permits the observation of spin exchange processes. 13C applications include examples of chemical exchange, spin diffusion, the effect of 14N relaxation, and intrinsic T2 effects.

[1]  P. M. Henrichs,et al.  Quadrupole effects in the magic‐angle‐spinning spectra of spin‐1/2 nuclei , 1981 .

[2]  A. N. Garroway,et al.  13C NMR rotating frame relaxation in a solid with strongly coupled protons: Polyethylene , 1979 .

[3]  B. Meier,et al.  Elucidation of chemical exchange networks by two-dimensional NMR spectroscopy: the heptamethylbenzenonium ion , 1979 .

[4]  S. Opella,et al.  Influence of nitrogen-14 on carbon-13 NMR spectra of solids , 1981 .

[5]  L. Weiler.  13C-Nuclear Magnetic Resonance Spectrum of Tropolone , 1972 .

[6]  G. Maciel,et al.  A magic-angle spinning system for bullet-type rotors in electromagnets , 1981 .

[7]  J. Waugh,et al.  Transverse relaxation of dipolar coupled spin systems under rf irradiation: Detecting motions in solids , 1981 .

[8]  Richard R. Ernst,et al.  Investigation of exchange processes by two‐dimensional NMR spectroscopy , 1979 .

[9]  S. Opella,et al.  Selection of nonprotonated carbon resonances in solid-state nuclear magnetic resonance , 1979 .

[10]  E. Stejskal,et al.  Carbon-13 nuclear magnetic resonance of polymers spinning at the magic angle , 1976 .

[11]  A. N. Garroway,et al.  Resolution in 13C NMR of organic solids using high-power proton decoupling and magic-angle sample spinning , 1981 .

[12]  E. Stejskal,et al.  Removal of artifacts from cross-polarization NMR experiments , 1975 .

[13]  J. Virlet,et al.  NMR Longitudinal cross relaxation induced by natural abundance 13C-13C dipolar interaction in organic solids. Hexamethylethane , 1980 .

[14]  Alexander Pines,et al.  Proton‐enhanced NMR of dilute spins in solids , 1973 .

[15]  S. Ganapathy,et al.  High resolution solid state 13C NMR spectra of carbons bonded to nitrogen in a sample spinning at the magic angle , 1981 .