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ansa-Metallocene derivatives

Identifieur interne : 008C76 ( Main/Merge ); précédent : 008C75; suivant : 008C77

ansa-Metallocene derivatives

Auteurs : Hans-Robert H. Damrau [Allemagne] ; Armin Geyer [Allemagne] ; Marc-Heinrich Prosenc [Allemagne] ; Armin Weeber [Allemagne] ; Frank Schaper [Allemagne] ; Hans-Herbert Brintzinger [Allemagne]

Source :

Journal of Organometallic Chemistry [ 0022-328X ] ; 1997.

RBID : ISTEX:D8E31465996FFFE7B662CACFA515D05295F06E31

Abstract

A series of chiral ansa-magnesocene complexes with dimethylsilanediyl- or ethanediyl-bridged, substituted cyclopentadienyl or indenyl ligands, prepared in form of their THF adducts, has been structurally characterized by diffractometric crystal structure determination and by NMR studies in solution. The hapticities of the ring ligands vary between η1 and η5, depending on the nature of the interanular bridge and the C5 ring substituents. A racemic configuration is preferred by Mg bis-indenyl complexes with either Me2Si- or C2H4-bridges in the solid state and in solution, while meso isomers predominate for t-butyl-substituted ansa-magnesocenes.

Url:

https://api.istex.fr/document/D8E31465996FFFE7B662CACFA515D05295F06E31/fulltext/pdf

DOI: 10.1016/S0022-328X(97)00618-9

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ISTEX:D8E31465996FFFE7B662CACFA515D05295F06E31

Le document en format XML

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<author><name sortKey="Geyer, Armin" sort="Geyer, Armin" uniqKey="Geyer A" first="Armin" last="Geyer">Armin Geyer</name>
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<author><name sortKey="Prosenc, Marc Heinrich" sort="Prosenc, Marc Heinrich" uniqKey="Prosenc M" first="Marc-Heinrich" last="Prosenc">Marc-Heinrich Prosenc</name>
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<author><name sortKey="Weeber, Armin" sort="Weeber, Armin" uniqKey="Weeber A" first="Armin" last="Weeber">Armin Weeber</name>
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<author><name sortKey="Schaper, Frank" sort="Schaper, Frank" uniqKey="Schaper F" first="Frank" last="Schaper">Frank Schaper</name>
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<author><name sortKey="Brintzinger, Hans Herbert" sort="Brintzinger, Hans Herbert" uniqKey="Brintzinger H" first="Hans-Herbert" last="Brintzinger">Hans-Herbert Brintzinger</name>
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<front><div type="abstract" xml:lang="en">A series of chiral ansa-magnesocene complexes with dimethylsilanediyl- or ethanediyl-bridged, substituted cyclopentadienyl or indenyl ligands, prepared in form of their THF adducts, has been structurally characterized by diffractometric crystal structure determination and by NMR studies in solution. The hapticities of the ring ligands vary between η1 and η5, depending on the nature of the interanular bridge and the C5 ring substituents. A racemic configuration is preferred by Mg bis-indenyl complexes with either Me2Si- or C2H4-bridges in the solid state and in solution, while meso isomers predominate for t-butyl-substituted ansa-magnesocenes.</div>
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ansa-Metallocene derivatives

ansa-Metallocene derivatives

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Abstract

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