Ta(V) complexes of a bulky amine tris(phenolate) ligand: steric inhibition vs. chelate effect

Ta(V) complexes of a bulky amine tris(phenolate) ligand: steric inhibition vs. chelate effect

The reactivity of a bulky amine tris(phenolate) ligand toward Ta(NMe 2) 5 was investigated. The reaction leading to the final product LigTa(NMe 2) 2 was slow and proceeded via an unusual dinuclear complex. The X-ray structures of both complexes were solved. Significantly, although the reaction of Ta...

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Bibliographic Details
Published in:Inorganic chemistry communications Vol. 7; no. 8; pp. 938 - 941
Main Authors: Groysman, Stanislav, Segal, Sharon, Goldberg, Israel, Kol, Moshe, Goldschmidt, Zeev
Format: Journal Article
Language:English
Published: Elsevier B.V 01-08-2004
Subjects:
Amine tris(phenolate) ligands
Chelating ligands
Dinuclear complex
Tantalum
Dinuclear complex
Tantalum
Amine tris(phenolate) ligands
Chelating ligands
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Summary:The reactivity of a bulky amine tris(phenolate) ligand toward Ta(NMe 2) 5 was investigated. The reaction leading to the final product LigTa(NMe 2) 2 was slow and proceeded via an unusual dinuclear complex. The X-ray structures of both complexes were solved. Significantly, although the reaction of Ta(OEt) 5 with that ligand precursor is slow as well, no dinuclear intermediate is observed during the reaction course.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2004.06.003