Lewis base complexes of silaaluminocenophanes†
Several new silaaluminocenophane Lewis base complexes are described, which were synthesized directly from the corresponding silamagnesocenophane and AlX3·base precursors. The compounds are stable at room temperature for weeks, and were characterized in solution by multinuclear NMR spectroscopy and in the solid state by single crystal X-ray diffraction. In all cases, a dynamic structure was observed in solution, due to rapid sigmatropic rearrangements. Bonding energies of the Lewis base ligands to the aluminium center were calculated to be 162.9–213.3 kJ mol−1.
- This article is part of the themed collection: New Talent: Europe