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Dynamic polarization of carbon-13 nuclei in free radical solutions

✍ Scribed by Richard D. Bates Jr.; Burkhard E. Wagner; Edward H. Poindexter

Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
410 KB
Volume
17
Category
Article
ISSN
0009-2614

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✦ Synopsis

In contrast to previously studied nuclei, solvent carbon-13 NhfR enhancements at 74 G for a series of free radicals show increased contribution of scalar coupling for well shielded, saturated carbons. Enriched *'CC4 with BDPA gives an ultimrtte enhancement of +850.

πŸ“œ SIMILAR VOLUMES

Dynamic nuclear polarization of tin-119
Dynamic nuclear polarization of tin-119 nuclei in free radical solutions
✍ R. Vilhjalmsson; J. KΓΆppen πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 231 KB

Dynamic nuclear polarization of tin-l 19 in free radical solutions has been studied at 175 G. Scalar interactions are predominant for both bivalent and tetravalent tin compounds.

Chemically induced dynamic nuclear polar
Chemically induced dynamic nuclear polarization of 13C nuclei in the thermal decomposition of organic peroxides
✍ E. Lippmaa; T. Pehk; A.L. Buchachenko; S.V. Rykov πŸ“‚ Article πŸ“… 1970 πŸ› Elsevier Science 🌐 English βš– 532 KB

## Carbon-13 NNR spectra of chemically polarized decomposition pro&&s %%X6? in~est~g~~~d. The pofarization is much larger than in proton spectra, positive for radical recombination pro&cts and negative Ear thr? others. The chemical polarization appears ;IC the very moment of Formation of the stabl