A series of variously substituted aminosilanes was investigated by 15N NMR spectroscopy to obtain further information on the controversial problem of pπ‐dπ interaction in these systems. The 15N NMR data are consistent with the 13C and 29Si results and suggest that the (p‐d)π backbonding is not negligible in these systems. The values of the 15N chemical shifts and the 13C parameters [δ13C and J(13CH)] are discussed in terms of nitrogen lone‐pair delocalization and provide a good basis for explaining the variations of the 29Si chemical shifts with the nature of the nitrogen atom substituents.
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Filleux‐Blanchard et al. (1979) studied this question.
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