Isotope effects on the13C chemical shift and carbon-proton coupling constant in dichloromethane
作者： N. M. Sergeyev , N. D. Sergeyeva , W. T. Raynes
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摘要: Carbon-proton anf carbon-deuteron coupling constants were measured in the isotopomers CH 2 Cl , CHDCl and CD . The primary secondary isotope effects on carbon-proton are -0.60 (±0.05) -0.25 (±0.01) Hz, respectively. deuterium-induced 13 C shifts proved to be almost linearly dependent number of deuterium atoms, although there is a small but significant non-additivity
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