✦ LIBER ✦
Oligomeric Solvent-Free Magnesium Bis(phosphanides) − Molecular Structure of Trimeric Magnesium Bis[bis(trimethylsilyl)phosphanide]
✍ Scribed by Matthias Westerhausen; Matthias H. Digeser; Birgit Wieneke; Heinrich Nöth; Jörg Knizek
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 492 KB
- Volume
- 1998
- Category
- Article
- ISSN
- 1434-1948
No coin nor oath required. For personal study only.
✦ Synopsis
The metathesis reaction of (dme)LiPH 2 and chlorodiisopropylsilane yields HP(SiHiPr 2 ) 2 (1) and P(SiHiPr 2 ) 3 (2). The metalation of 1 by n/sec-dibutylmagnesium in heptane leads to the formation of dimeric magnesium bis[bis(diisopropylsilyl)phosphanide] [(3) 2 ]. A toluene solution of magnesium bis[bis-(trimethylsilyl)phosphanide] (4) shows a dimer-trimer equilibrium in the 31 P{ 1 H}-NMR spectrum at Ϫ40°C with an in-[ ] X-ray structure analysis.