| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5420940 | Solid State Nuclear Magnetic Resonance | 2006 | 6 Pages |
Abstract
For the first time, 17O NMR studies were performed on 17O-enriched crystalline pyrophosphates (magnesium-, sodium- and barium-pyrophosphate) by means of triple-quantum magic-angle spinning (3QMAS) and double-rotation (DOR) in the high external field of 17.6Â T. Oxygen atoms in bridging positions (P-OB-P) exhibit a significant higher quadrupole coupling constant compared to oxygen atoms in terminal positions (P-OT). With increasing cationic radius a higher value of the chemical shift of the terminal oxygen atoms is observed.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Daniel Prochnow, Arnd-Rüdiger Grimmer, Dieter Freude,