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Lewis base complexes of sila[2]aluminocenophanes

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Abstract

Several new sila[2]aluminocenophane Lewis base complexes are described, which were synthesized directly from the corresponding sila[2]magnesocenophane 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.

Graphical abstract: Lewis base complexes of sila[2]aluminocenophanes

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Publication details

The article was received on 18 Jun 2018, accepted on 27 Jun 2018 and first published on 10 Jul 2018


Article type: Communication
DOI: 10.1039/C8DT02491J
Citation: Dalton Trans., 2018, Advance Article
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    Lewis base complexes of sila[2]aluminocenophanes

    W. Haider, V. Huch and A. Schäfer, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT02491J

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