Abstract
1. The199Hg chemical shifts in the series PhHgOCOC6H4R correlate with the polar constants of the substituants R. The carboxylate group weakens quite considerably the transfer of the effect of the substituents, in comparison with the series PhHgC6H4R. The influence of strongly solvating solvents on δHg is comparable to the effects of the substituents. 2. For the199Hg NMR spectra of mixtures of these compounds, temperature and concentration dependences are observed, indicating intermolecular exchange of benzoate fragments. An estimate has been made of the activation barrier of the process for a binary mixture of 4-ClC6H4COOHgPh and 4-MeOC6H4COOHgPh in THF.
Published Version
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