Ontology type: schema:ScholarlyArticle
1997-11
AUTHORSS. N. Tandura, S. P. Kolesnikov, K. S. Nosov, V. Ya. Lee, M. P. Egorov, O. M. Nefedov
ABSTRACTThe signals in the13C NMR spectra of 2,3,4,5-tetraphenyl-1-germacyclopenta-2,4-dienes (R1=R2=H, Me,cyclo-C3H5, SiMe3, SnMe3, R1=Me, R2=H, Cl) were completely assigned using 2D NMR spectroscopy. The pattern of the variation of the chemical shifts in the13C NMR spectra indicates that the effects of substituents R1 and R2 on the heterocycle and on the phenyl groups are of inductive rather than mesomeric origin and include the direct through-space polarization of bonds (field effect). More... »
PAGES1859-1861
http://scigraph.springernature.com/pub.10.1007/bf02503773
DOIhttp://dx.doi.org/10.1007/bf02503773
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