## Abstract The proton magnetic resonance spectra with natural abundance ^13^C satellites of __p__‐chlorotoluene in isotropic as well as in oriented solvents are analyzed. The indirect CH and HH couplings are determined from the isotropic sample and one bond ^13^C isotope effects on the proton ch
Proton nuclear magnetic resonance study of phthalide and 2-coumaranone partially oriented in nematic phases
✍ Scribed by T. C. Wong; Kenneth J. Koval
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 279 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The ^1^H NMR spectra of phthalide in Merck Nematic Phase IV and in N‐(p‐ethoxybenzylidene)‐p‐n‐butylaniline (EBBA) and of 2‐coumaranone in Merck Nematic Phase IV were analyzed. Structural parameters were obtained. The planarity of the 5‐membered ring and the molecular orientations were discussed.
📜 SIMILAR VOLUMES
## Abstract The ^1^H NMR spectra of imidazo [1,2‐__a__]pyrimidine derivatives have been analysed to study the aromatic character and protonation behaviour of this system. By employing the ‘ring currentn’ model and calculations based on the coupled Hartree‐Fock method it can be deduced that a large