✦ LIBER ✦

13C NMR investigations of phenol–triethylamine complexes: Influence of hydrogen bond interaction on the electronic structure of the aliphatic chain

✍ Scribed by Marek Ilczyszyn; Zdzisław Latajka; Henryk Ratajczak

Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 355 KB
Volume: 22
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270220704

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The influence of hydrogen bond formation on ^13^C chemical shifts at the α and β positions of triethylamine and tri‐n‐butylamine has been investigated by dipole moment measurements and CNDO/2 calculations. It has been shown that a hydrogen bridge dipole moment occurs during complexation. Moreover, the change observed in the C‐αC‐β bond dipole moment is proportional to the hydrogen bridge dipole moment, but is approximately 100 times smaller. This change has been related to differences between the ^13^C chemical shifts at the α and β positions of amines.

📜 SIMILAR VOLUMES

13C NMR investigations of phenol–triethy

13C NMR investigations of phenol–triethylamine complexes: The influence of hydrogen bond interaction on the electronic structure of phenols

✍ Marek Ilczyszyn; Zdzisław Latajka; Henryk Ratajczak 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB

## Abstract The influence of hydrogen bond formation on the screening at the C‐1 carbon of phenols is investigated, both experimentally and theoretically. Qualitatively good agreement between experimental and predicted data, obtained by means of calculations based on the CNDO/2 method and the Karpl

Influence of the C—H· · ·N intramolecula

Influence of the C—H· · ·N intramolecular interaction on the spatial structures and 1H and 13C NMR parameters of heteroaryl vinyl ethers and sulfides

✍ Andrei V. Afonin; Igor A. Ushakov; Svetlana Yu. Kuznetsova; Lyudmila V. Andriyan 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 159 KB

## Abstract A complete analysis of the ^1^H and ^13^C spectra of the representative series of heteroaryl vinyl ethers and sulfides and heteroaryl styryl sulfides was carried out. The electronic and spatial structures of these compounds are discussed. It was shown that the C—H· · ·N intramolecular i

Comparison of the Electronic Structures

Comparison of the Electronic Structures of Imine and Hydrazone Side-Chain Functionalities with the Aid of 13C and 15N NMR Chemical Shifts and PM3 Calculations. The Influence of C=N-Substitution on the Sensitivity to Aromatic Substitution.

✍ K. Neuvonen; F. Fueloep; H. Neuvonen; A. Koch; E. Kleinpeter; K. Pihlaja 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 57 KB