𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Observation of steric hindrance in heteraferrocenophanes by carbon-13 NMR

✍ Scribed by A. Piórko; A. Ratajczak


Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
158 KB
Volume
16
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The ^13^C NMR spectra of stereoisomeric trans‐ and cis‐1,3‐dimethyl‐2‐oxa[3](1, 1′)ferrocenophanes, 1,2,3‐trithia[3](1, 1′)ferrocenophane and 1,3‐dithia[3](1, 1′)ferrocenophane have been recorded and analysed. The presence of steric hindrance in some of these compounds was confirmed and the conformations of the molecules were determined.


📜 SIMILAR VOLUMES


Resorcinol–formaldehyde reactions in dil
✍ Alfred W. Christiansen 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 163 KB 👁 2 views

A recently discovered coupling agent, hydroxymethylated resorcinol (HMR), based on resorcinol-formaldehyde, can greatly enhance wood-to-epoxy resin bond durability in exterior applications. However, for HMR to be most effective, it needs to be prepared a few hours before it is applied to the wood su

Chain diffusion in polyethylene andn-alk
✍ Klein, P. G.; Robertson, M. B.; Driver, M. A. N.; Ward, I. M.; Packer, K. J. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 261 KB 👁 2 views

Molecular chain di †usion in polyethylene crystals is studied using carbon-13 NMR longitudinal relaxation. Conventional slow-cooled polyethylene samples have been treated by means of electron-beam irradiation in acetylene, which forms crosslinks mainly at the fold surfaces. Following saturation, the

13C NMR Studies: Effect of steric compre
✍ Mahavir Prashad; M. Seth; A. P. Bhaduri; Avijit Banerji 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 148 KB 👁 1 views

## Abstract ^13^C NMR of diastereoisomeric pairs of 2,3‐diaryl‐2‐methylbutyronitriles revealed a difference in the chemical shift of the carbon atoms between the diastereoisomers and the observed shifts were greatly influenced by the presence of an __ortho__ substituent in the 3‐phenyl ring.