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Substituent effects on 13C13C coupling constants and chemical shifts in 13C labelled polycyclic aromatic hydroxy compounds

✍ Scribed by P. E. Hansen; O. K. Poulsen; A. Berg

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
302 KB
Volume
7
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The effects of an hydroxy substituent on ^13^C^13^C coupling constants and ^13^C chemical shifts have been measured in 1‐hydroxynaphthalene‐2‐^13^C and 1‐hydroxypyrene‐1‐^13^C. The changes observed in the ^13^C^13^C couplings show the effect of a substituent attached directly to the labelled carbon or to a carbon ortho to this. In both situations the effect is a decrease in the numerical magnitude of most of the long range ^13^C^13^C coupling constants.

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