𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structure differentiation by means of lanthanide-induced nitrogen-14 chemical shifts

✍ Scribed by M. Witanowski; L. Stefaniak; H. Januszewski; G. A. Webb


Publisher
Springer
Year
1975
Tongue
English
Weight
122 KB
Volume
5
Category
Article
ISSN
1572-8854

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Localization of N-oxide groups by means
✍ M. Witanowski; L. Stefaniak; B. KamieΕ„ski; G. A. Webb πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 224 KB

## Abstract The applicability of nitrogen chemical shifts to the localization of __N__‐oxide groups in azine ring systems is exemplified by 1,2,4‐triazine systems. The average excitation energy approximation in the theory of magnetic shielding gives a good linear correlation with the nitrogen shiel

The determination of stereochemistry of
✍ Michihiko Ochiai; Eiji Mizuta; Osami Aki; Akira Morimoto; Taiiti Okada πŸ“‚ Article πŸ“… 1972 πŸ› Elsevier Science 🌐 French βš– 195 KB

We have recently reported facile syntheses of 3-methylenecepham derivatives (2) by an electrochemical reduction 1) and by chromium(I1) salts reduction2) of the corresponding cephalosporanic acids (A).

Conformational analysis by chemical shif
✍ Hajime Iwamoto; Yanyan Yang; Shuji Usui; Yoshimasa Fukazawa πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 French βš– 90 KB

## Conformational analysis of 1,4,11,14-tetraoxa[4.4] metacyclophane was carried out using a combination of the molecular mechanics calculation, analysis of the temperature dependent 1 H NMR signal change and the chemical shift simulation method. The molecular mechanics calculation with Amber\* fo