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Título

Mononuclear and dinuclear bromo bridged iridium(I) complexes with N-allyl substituted imidazolin-2-ylidene ligands

AutorEkkehardt Hahn, F.; Heidrich, Beate; Pape, Tania; Hepp, Alexander; Martín, Marta ; Sola, Eduardo ; Oro, Luis A.
Palabras claveCarbene ligand; N-Allyl substituent
Iridium(I)
Structure determination
Fecha de publicación1-dic-2006
EditorElsevier
CitaciónInorganica Chimica Acta 359(15): 4840-4846 (2006)
ResumenThe reaction of 1-methyl-3-(2-propenyl)imidazolium bromide (1) or 1,3-bis(2-propenyl)-imidazolium bromide (2) with [Ir(μ-OMe)(cod)]2 afforded the five coordinated iridium(I) carbene complexes [IrBr(L)(cod)] (3) (L=1-methyl-3-(2-propenyl)imidazolin-2-ylidene) and (4) (L=1,3-bis(2-propenyl)imidazolin-2-ylidene). The reaction proceeds via an in situ deprotonation of the imidazolium salt. Molecular structure determinations on 3 and 4 confirmed the coordination of the carbene ligands via the carbene carbon atom and one allyl group in both complexes. Treatment of complex 3 with an excess of AgBF4 gave the dinuclear bromo bridged complex [(Ir(μ-Br)(L)(cod)]2BF4 (5) (L=1-methyl-3-(2-propenyl)imidazolin-2-ylidene). The reaction of complex 4 with an excess of AgBF4 led to the mononuclear complex [Ir(L)(cod)]BF4 (6) (L=1,3-bis(2-propenyl)imidazolin-2-ylidene) where both N-allyl substituents are coordinated to the iridium(I) center.
Descripción7 pages, 3 figures, 1 table, 2 schemes.
Versión del editorhttp://dx.doi.org/10.1016/j.ica.2006.07.010
URIhttp://hdl.handle.net/10261/19683
DOI10.1016/j.ica.2006.07.010
ISSN1359-6462
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