## Abstract ^13^C spin–lattice relaxation times determined for the protonated carbons of carboxylic acids and methyl esters give indications of solution dimerization with the free acids. Since isopthalic and fumaric acids have two carboxyl functions they are able to polymerize in solution. Unlike t
Carbon-13 spin-lattice relaxation of acetylcholine and analogues
✍ Scribed by Joseph B. Lambert; Wojciech Schilf
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 304 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Measurements of the enhancement, by various electrolytes, of the spin-lattice relaxation time of carbon-13 at different locations in a number of amino acids are reported. Spin-lattice relaxation times T 1 of all the carbons in amino acids generally tend to decrease with increase in the concentr
The spin-lattice relaxation of ten polychloroalkanes (ethanes to pentanes) have been studied both neat and in a 50% solution in CDC13. The Tl values for the CH,, CH,Cl and CHCl, carbons decrease with increasing molecular weight in accordance with a dipolar-dominated mechanism, whereas those of the C
## Abstract Carbon‐13 spin‐lattice relaxation times (__T__~1~) and ^13^C‐{^19^F} nuclear Overhauser enhancement (NOE) factors have been measured for some simple fluorocarbons by pulse‐Fourier transform methods—‘progressive saturation’ and ‘dynamic Overhauser enhancement’. The NOE factors are shown