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29Si NMR: A new approach to the analysis of chemical shift variations

✍ Scribed by V.G. Malkin; O.V. Gritsenko; G.M. Zhidomirov

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
456 KB
Volume
152
Category
Article
ISSN
0009-2614

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✦ Synopsis

A new approach to the analysis oftbe U-shaped dependence of *%i NMR chemical shifts on the sum ofgroup electronegativities of ligands, based on a proper account of the presence of the silicon core A0 of the same symmetry as the silicon valence 3p A0 is presented. A new dependence between I,,= ( T-')~~ and the valence A0 populations has been established. *'Si NMR chemical shift calculations for organosilicon compounds using the FPT INDO-CS method are in good agreement with experimental data.

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