✦ LIBER ✦
Solvent-induced variations in nitrogen NMR shieldings of tert-butyl isocyanide as a probe for solvent polarizability–polarity
✍ Scribed by Michal Witanowski; Wanda Sicinska; Graham A. Webb
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 356 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The nitrogen NMR shielding of tert‐butyl isocyanide (1) is shown to be a sensitive probe of solvent polarizability–polarity, since the shielding is demonstrated to be unresponsive to hydrogen bonding effects between 1 and the solvent. The direction of solvent effects observed is explained in terms of the solvaton model, used within the INDO/S–SOS framework. A comparison is made with solvent‐induced nitrogen shielding variations of the corresponding isomeric covalent cyanides.