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15 N‐ 29 Si Coupling Constants and 15 N Isotope Effect on 29 Si Chemical Shifts in Compounds with Natural Isotopic Abundance
Author(s) -
Kupče Ēriks,
Liepiņš Edvards,
Lukevics Edmunds
Publication year - 1985
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198505681
Subject(s) - coupling constant , natural abundance , spectral line , chemical shift , abundance (ecology) , chemistry , isotope , pulse sequence , nmr spectra database , kinetic isotope effect , coupling (piping) , analytical chemistry (journal) , nuclear magnetic resonance , materials science , physics , atomic physics , organic chemistry , deuterium , nuclear physics , particle physics , astronomy , fishery , biology , metallurgy
A new method for determining 1 J ( 15 N 29 Si) coupling constants does not use the 29 Si satellites in 15 N‐NMR spectra but the 15 N satellites in 29 Si‐NMR spectra. The sensitivity of this new technique is almost one hundred times that of the technique used earlier. In both cases the INEPT pulse sequence was used. Illustrative examples include, inter alia, the compounds 1 (n = 2–6) and 2 (X = O, S).