Stable Borate-Bridged ansa-Zirconocene Complexes. Preparation and X-ray Crystallographic Characterization of [Cp2Al]+[Me(Ph)B(η5-C5H4)2ZrCl2]- and [PPN]+[Cl(Ph)B(η5-C5H4)2ZrCl2]
The title complexes are stable, borate-bridged ansa-zirconocene species which have been prepared by reacting [{Ph(SMe2)B(η5-C5H4)2}ZrCl2] (1) with Cp*2AlMe and [PPN]Cl. Their molecular structures were determined by X-ray diffraction. Noteworthy are the stabilities of the borate−cyclopentadienyl link...
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| Veröffentlicht in: | Organometallics 1999-12, Vol.18 (26), p.5432-5434 |
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| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The title complexes are stable, borate-bridged ansa-zirconocene species which have been prepared by reacting [{Ph(SMe2)B(η5-C5H4)2}ZrCl2] (1) with Cp*2AlMe and [PPN]Cl. Their molecular structures were determined by X-ray diffraction. Noteworthy are the stabilities of the borate−cyclopentadienyl linkages and the enhanced Lewis acidity of the boron within its strained ansa position. |
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| ISSN: | 0276-7333 1520-6041 |
| DOI: | 10.1021/om990744p |