✦ LIBER ✦
13C T1 NMR study of arylmercury compounds. Barriers to rotation about the carbon–mercury bond
✍ Scribed by Ruthanne D. Thomas; Keith E. Rowland
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 486 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Barriers to rotation about the preferred axis, C-4-Hg-C-4, were determined for diphenyl-, bis(o-toly1)-and bis(m-toly1)-mercury from 13C T , relaxation times as a function of temperature in DMSO and in 1,1,2,2-tetrachloroethane-CCt,. Based on results for the unsymmetrical compound phenyl(o-tolyl)mercury, the rotation about the preferred axis is interpreted as rotation about the carbon-mercury bond. The average barrier to internal rotation of 3.6 0.6 kcal mol-' is constant as a function of both methyl substitution and coordinating and non-coordinating solvents.