1H-chemical shifts of some dehydro[12]- and dehydro[14]-annulenes

Vogler, H.

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Publication date

January 1979

DOI

10.1016/0040-4020(79)87012-X

Publisher

Elsevier BV

ISSN

0040-4020

Citation count (estimate)

Abstract

The ring-current (RC) and local anisotropic (LA) contributions to the 1H-chemical shifts of the dehydro[12]- and dehydro[14]-annulenes 1–13 have been calculated. The calculated shifts are in very good accord with experiment. Only protons with distances <3 Å from a triple bond are obtained at too high a field. It is shown that only the consideration of the combined RC and LA effects can provide an explanation of the chemical shifts of inner and outer protons of annulenes

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1H-chemical shifts of some dehydro[12]- and dehydro[14]-annulenes

Abstract

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1H-chemical shifts of some dehydro[12]- and dehydro[14]-annulenes

Abstract

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