Synthesis and Characterization of the First Sandwich Complex of Trivalent Thorium:  A Structural Comparison with the Uranium Analogue

Synthesis and Characterization of the First Sandwich Complex of Trivalent Thorium:  A Structural Comparison with the Uranium Analogue

Reduction of the bulky 8-annulene thorium complex [Th{COT(TBS)2}2] (COT(TBS)2 = η-C8H6(tBuMe2Si)2-1,4) by potassium yields the anionic compound {Th[COT(TBS)2]2}K·(DME)2, which was crystallographically characterized and is the first sandwich complex of Th(III). EPR spectroscopy indicates that the mol...

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Veröffentlicht in:Journal of the American Chemical Society 1999-07, Vol.121 (29), p.6867-6871
Hauptverfasser: Parry, Julian S, Cloke, Coles, Simon J, Hursthouse, Michael B
Format: Artikel
Sprache:eng
Schlagworte:
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
MATERIALS SCIENCE
REDUCTION
SILANES
THORIUM COMPLEXES
URANIUM COMPLEXES
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Zusammenfassung:Reduction of the bulky 8-annulene thorium complex [Th{COT(TBS)2}2] (COT(TBS)2 = η-C8H6(tBuMe2Si)2-1,4) by potassium yields the anionic compound {Th[COT(TBS)2]2}K·(DME)2, which was crystallographically characterized and is the first sandwich complex of Th(III). EPR spectroscopy indicates that the molecule possesses a 6d1 ground state. A structural comparison is made with the isostructural uranium(III) complex and the thorium(IV) parent compound.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja9903633