NMR Chemical Shifts: Updated Conventions
The recent IUPAC document on conventions for chemical shifts (Pure and Applied Chemistry73, 2001, 1795), which has been well received by the nuclear magnetic resonance (NMR) community, left a number of outstanding issues for later debate. These include (i) temperature variation of the signals for the standards, (ii) the use of magic-angle spinning for both solutions and solids, (iii) solvent effects, (iv) susceptibility measurements/ corrections, and (v) conventions for shielding tensors. These matters will now be taken up by a Task Group including R. K. Harris (chairman), E. D. Becker, S. M. Cabral de Menezes, P. Granger, and K. W. Zilm. An evening "open forum" has been arranged during the 16th International NMR Meeting on NMR Spectroscopy at the University of Cambridge, 29 June to 3 July 2003, to discuss the relevant questions.
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Published Online: 2009-09-01
Published in Print: 2003-07-01