NMR spectra of19in α, Β-difluoro-Β-chlorostyrenes
✍ Scribed by N. M. Sergeev; N. M. Shapet'ko; E. M. Panov; R. S. Sorokina
- Book ID
- 112363006
- Publisher
- Springer
- Year
- 1967
- Tongue
- English
- Weight
- 156 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0040-5760
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It is well established that the Van der Waals radii of fluorine (rF-q.35 A) and hydrogen (rH-1.10 /~) are quite similar, thereby rendering fluorine the only element that can replace hydrogen in biological systems without changing steric demands. 1 However, the strong electronegative nature of fluori