J HT Couplings are closely predictable from JHH couplings and vice versa: a new set of 2JHH coupling constants has thus been derived, of higher precision than any previously calculated from 2JHD couplings. Primary isotope effects become noticeable for the larger 1JCT couplings. Various secondary isotope effects on chemical shifts were noted.
J. M. A. Al-Rawi, J. A. Elvidge, J. R. Jones and E. A. Evans, J. Chem. Soc., Perkin Trans. 2, 1975, 449 DOI: 10.1039/P29750000449
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