NMR studies of molecular motions in solid tetramethylammonium bromide
β Scribed by M Polak; M Sheinblatt
- Publisher
- Elsevier Science
- Year
- 1973
- Weight
- 462 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
Analyses of spin-lattice relaxation time and second moment measurements of the polycrystalline saccharides methyl a-D-mannopyranoside, methyl fl-D-arabinopyranoside, methyl fl-L-arabinopyranoside and fl-D-allose have revealed, apart from methyl group reorientations in the methyl pyranosides, the jum
Proton Zcoman-and dipolar spin-lattice rekxation times and second moments have been measured in polycrystallinc SiH4 at 24 %IHz, between 90 and 3 K. Down to 25 K the classical model for molecular motion appibs; below 25 EC, quantum effects have to be taken into account.