13C cross polarization and spin relaxation in adamantane at pressures up to 7 kbar
β Scribed by D van der Putten; K.O Prins
- Publisher
- Elsevier Science
- Year
- 1988
- Weight
- 817 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
13 C spin-lattice relaxation times in the laboratory frame, ranging from 1.4 to 36 h, have been measured on a suite of five natural type Ia and Ib diamonds at 4.7 T and 300 K. Each of the diamonds contains two types of fixed paramagnetic centers with overlapping inhomogeneous electron paramagnetic r
The density dependence of J13c-n in 13CH4 has been accurately measured in a methane sample containing thenatural amotmt of ~3CH4. A linear increase of J~3c-n with increasing density has been found. The total variation over a density interval from 0-575 amagat is 0.24 Hz.