## Abstract ^13^C NMR spin‐lattice relaxation times (__T__~1~) and nuclear Overhauser enhancements (η) were measured for dithiarsolanes. The contributions of dipolar (__T__) and spin‐rotation (__T__) mechanisms were determined. The __T__~1~ data were analysed to obtain information on the relative o
Molecular motion in liquid toluene and perfluorotoluene from carbon-13 spin-lattice relaxation measurements
✍ Scribed by M'Hamed Ali Hamza; Guy Serratrice; Marie-José Stebe; Jean-Jacques Delpuech
- Publisher
- Elsevier Science
- Year
- 1981
- Weight
- 732 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0378-4487
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Relaxation calculations for rapidly spinning samples show that spin-lattice relaxation time (T 1Z ) anisotropy varies with the angle between the rotor spinning axis and the external field. When the rate of molecular motion is in the extreme narrowing limit, the measurement of T 1Z anisotropies for t
## Abstract ^13^C NMR spin‐lattice relaxation times (__T__~1~) have been measured as a function of temperature for three 2‐phenyl‐1,3,2‐dioxarsolanes. The __T__~1~ data have been interpreted in terms of isotropic overall molecular reorientation, internal rotation about the AsPh bond and internal m