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Isotope effects on the 13C chemical shift and carbon–proton coupling constant in dichloromethane

✍ Scribed by N. M. Sergeyev; N. D. Sergeyeva; W. T. Raynes

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
489 KB
Volume
32
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Carbon–proton and carbon–deuteron coupling constants were measured in the isotopomers CH~2~Cl~2~, CHDCl~2~ and CD~2~Cl~2~. The primary and secondary isotope effects on the carbon–proton coupling are −0.60 (±0.05) and −0.25 (±0.01) Hz, respectively. The deuterium‐induced ^13^C isotope shifts proved to be almost linearly dependent on the number of deuterium atoms, although there is a small but significant non‐additivity.

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