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Deuterium isotope effects in propylene and ethylene ozonide

✍ Scribed by Jong-In Choe; Hyung-Soo Choi; Robert L. Kuczkowski

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
466 KB
Volume
24
Category
Article
ISSN
0749-1581

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✦ Synopsis

The proton NMR spectra of four deuteriated species of propylene ozonide and five of ethylene ozonide were analysed. The deuterium isotope shifts were 0.0140ppm (H gem to D), 0.0034ppm (H trans to D) and 0.0015 ppm (H cis to D) for propylene ozonide. The same trends were observed in ethylene ozonide. The isotope s h i s were not additive when two geminal protons were substituted by deuterium. The relative intensities of microwave rotational and proton NMR transitions were compared for propylene ozonide-d, prepared stereoselectively in order to assign unambiguously its chemical shifts and spin-spin splittings.

KEY WORDS 'H NMR, deuterium isotope effects, propylene ozonide, ethylene ozonide

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