✦ LIBER ✦
Tetrakis(trimethylstannyl)germanium, the first observation of indirect nuclear 119Sn–73Ge spin–spin coupling 119Sn–73
✍ Scribed by Bernd Wrackmeyer; Piotr Bernatowicz
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 67 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Tetrakis(trimethylstannyl)
germanium was prepared and studied by 1 H, 13 C, 73 Ge and 119 Sn NMR spectroscopy. Quadrupolar relaxation of the 73 Ge nucleus is slow, which allows one to measure 1 J 117/119 Sn, 73 Ge D 37 Hz and to determine its positive sign by a 2D heteronuclear 73 Ge-1 H shift correlation. The absolute signs of other coupling constants involving the nuclei 1 H, 13 C and 117/119 Sn were also determined either by appropriate 2D shift correlations or selective 119 Snf 1 H, 13 Cg double resonance experiments.