Determination of the proton chemical shielding tensor in anhydrous α-oxalic acid by multiple pulse NMR
- 15 February 1974
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 60 (4) , 1668-1670
- https://doi.org/10.1063/1.1681244
Abstract
Multiple pulse line‐narrowing methods have been used to determine the proton chemical shielding tensors in a single crystal of anhydrous α‐oxalic acid. The results indicate approximate axial symmetry of the chemical shift about the nominal hydrogen bond directions with the largest shielding occurring when the external field is parallel to the hydrogen bond.Keywords
This publication has 1 reference indexed in Scilit:
- Approach to High-Resolution nmr in SolidsPhysical Review Letters, 1968