Proton longitudinal relaxation times of 13C isotopomers
β Scribed by Peter Bigler
- Publisher
- Elsevier Science
- Year
- 1987
- Weight
- 276 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
~C spin-lattice relaxation time, T~, t3C and tH spin-lattice relaxation times in the rotating frame, Ttp(13C) and Tip(IH), and the dipolar dephasing behaviour of methylene, methine and methyl carbons of annealed(monoclinic) and quenched(smectic) isotactic polypropylene films were measured using the
This work demonstrates the use of proton longitudinal relaxation to determine correlation times associated with the slow motions affecting a surfactant molecule engaged in a micellar aggregate. The longitudinal relaxation time Tr of the proton signal corresponding to methylenes in the aliphatic chai
A slmplc procedure IS proposed \h hlch yields. from carbon-l 3 longltudmal relavatlon times and nuclear Overhauser enhanccmcnts. Information concernmg the local moblllty of a gwzn CH vector III an alhyl cham. Tb~s method is based on the defimt:on of an eifcctlre rotatlon 3x1s related to internal mot