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Magic angle spinning (MAS) from L- and D-glutamic acid-HCl at 14.1 T produces highly structured and very similar NMR spectra. Lines from all 4 oxygen sites are readily distinguished and assigned. These17O NMR spectra are very different from the previously reported17O spectrum of the D,L-form presumably because that was a racemic crystal.17O NMR from L-monosodium glutamate-HCl is very different again requiring the application of double angle rotation and 3 quantum MAS NMR to provide resolution of 5 different sites. Hence high resolution17O solid state NMR techniques offer possible new insight into biochemical bonding processes. © 2003 Elsevier Science B.V. All rights reserved.

Original publication




Journal article


Chemical Physics Letters

Publication Date





91 - 97