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Proton chemical shift-charge density correlations for ortho positions in substituted benzenes.

✍ Scribed by P. Lazzeretti; F. Taddei

Book ID
104248695
Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
194 KB
Volume
11
Category
Article
ISSN
0040-4039

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📜 SIMILAR VOLUMES

Proton chemical shift-charge density cor
Proton chemical shift-charge density correlations in substituted alkyl derivatives.
✍ P. Lazzeretti; F. Taddei 📂 Article 📅 1969 🏛 Elsevier Science 🌐 French ⚖ 203 KB

Attempts have been made in recent years to correlate proton chemical shifts and charge densities in different series of compounds.' Mono substituted methanes and ethanes, ouing to their relatively simple electronic structure, seem to yield more useful information on the electronic mechanism involved

Substituent chemical shift correlations.
Substituent chemical shift correlations. Hammett σp+ values and shifts for exocyclic protons in para-substituted benzene derivatives
✍ Brian Maurice Lynch 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 276 KB

## Abstract The methyl ^1^H NMR shifts for series of __para__‐substituted __N__,__N__‐dimethylanilines as their conjugate acids in trifluoroacetic acid, and series of __para__‐substituted __N__,__N__,__N__‐trimethylphenyl‐ammonium iodides in acetonitrile and in deuterium oxide, and the methylene sh

An interpretation of 1H and 13C chemical
An interpretation of 1H and 13C chemical shifts in substituted benzenes on the basis of M.O. charge densities
✍ P. Lazzeretti; F. Taddei 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 532 KB

## Abstract The results of an MOLCAO calculation on both σ and π electron systems of several substituted benzenes are reported. The charge densities obtained reproduce the dipole moments of the molecules examined, provided that substituents with strong mesomeric effects are not present. It is shown