Issue 40, 2011

Steric control on the redox chemistry of (η5-C9H7)2YbII(THF)2 by 6-aryl substituted iminopyridines

Abstract

A steric control on the reductive capacity of ytterbocenes towards iminopyridine ligands is described. The reaction of (η5-C9H7)2Yb(THF)2 with a series of 6-organyl-2-(aldimino)pyridyl ligands (IPy) takes place with the replacement of two THF molecules by one IPy unit. In contrast to the rich reductive ytterbocene chemistry described in the presence of the unsubstituted (aldimino)pyridyl ligand, all 6-aryl substituted IPys scrutinized hereafter are involved into the metal coordination as neutral bidentate {N,N} or tridentate {N,N,S; N,N,O} ligands, with no changes of the metal oxidation state in the final complexes. A series of YbII metallocene complexes of general formula (η5-C9H7)2YbII2 or η3)[2,6-iPr2(C6H3)N[double bond, length as m-dash]CH(C5H3N)-6-R)] have been isolated and completely characterized. The stereo-electronic role of the aryl substituents in the IPy ligands on the ytterbocene redox chemistry has also been addressed.

Graphical abstract: Steric control on the redox chemistry of (η5-C9H7)2YbII(THF)2 by 6-aryl substituted iminopyridines

Supplementary files

Article information

Article type
Paper
Submitted
24 Jan 2011
Accepted
05 Apr 2011
First published
13 May 2011

Dalton Trans., 2011,40, 10568-10575

Steric control on the redox chemistry of (η5-C9H7)2YbII(THF)2 by 6-aryl substituted iminopyridines

A. A. Trifonov, B. G. Shestakov, I. D. Gudilenkov, G. K. Fukin, G. Giambastiani, C. Bianchini, A. Rossin, L. Luconi, J. Filippi and L. Sorace, Dalton Trans., 2011, 40, 10568 DOI: 10.1039/C1DT10135H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements