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Chemical polarization of nuclei. PMR spectra of decomposition products of dimethyl peroxydiphthalate

โœ Scribed by A. V. Kessenikh; S. V. Rykov; E. K. Starostin; G. I. Nikishin


Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
129 KB
Volume
3
Category
Article
ISSN
0749-1581

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โœฆ Synopsis


Abstract

Chemical polarization of protons was observed in methyl benzoate formed during the thermal decomposition of dimethyl ester of peroxydiphthalic acid. The polarization pattern of methyl benzoate aromatic protons was very different in this case from that observed during the thermal decomposition of acetyl benzoyl peroxide. The unpolarized products formed from the methoxy radical, CH~2~O and CH~3~OH, were found in the mixture of decomposition products of this peroxide and were identified by means of PMR spectroscopy.


๐Ÿ“œ SIMILAR VOLUMES


Chemical polarization of nuclei. Proton
โœ A. V. Ignatenko; A. V. Kessenikh ๐Ÿ“‚ Article ๐Ÿ“… 1971 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 128 KB

Proton chemical polarization was observed in methyl butyrate, y-butyrolactone and in some other products of the dimethyl perdiglutarate decomposition reaction. The polarization pattern of the a-CH, and P-CH, groups in butyrolactone is just as one would expect in the products of the CH,OCH,CH,CH, rad

Chemically induced dynamic nuclear polar
โœ E. Lippmaa; T. Pehk; A.L. Buchachenko; S.V. Rykov ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 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