Choudhury, Joyanta ; Krishna Kumar, D. ; Roy, Sujit (2007) Generation of Ir-Sn and Rh-Sn bonds from the oxidative addition of tin(IV) halides to [Ir(μ-Cl)(1,5-COD)]2 and [Rh(μ-Cl)(1,5-COD)]2 Journal of Organometallic Chemistry, 692 (25). pp. 5614-5620. ISSN 0022-328X
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.jorganchem.2007.09.016
Abstract
Facile oxidative addition of SnCl4, MeSnCl3, and SnBr4 across Ir(I) and Rh(I) cyclooctadiene complexes resulted in the formation of the corresponding Ir-Sn and Rh-Sn heterobimetallic complexes. Treatment of SnCl4 with [Ir(COD)(μ-Cl)]2 and [Rh(COD)(μ-Cl)]2 afforded [Ir(COD)(μ-Cl)Cl(SnCl3)]2 (1) and [Rh(COD)(μ-Cl)Cl(SnCl3)]2 (2), respectively. Reaction of the organotin halide MeSnCl3 with [Ir(COD)(μ-Cl)]2 led to the formation of [Ir(COD)(μ-Cl)Cl(MeSnCl2)]2 (3). The reaction of SnBr4 to Ir' and Rh' precursors gave [Ir(COD)(μ-Br)Br(SnBr3)]2 (4) and [Rh(COD)(μ-Br)Br(SnBr3)]2 (5) respectively, which indicates halide exchange at post-oxidative addition stage. The structures of complexes 1-5 were confirmed by X-ray crystallography. A cis-addition of Sn-X bond across IrI/RhI is proposed from the analysis of the geometrical features of "X-M-Sn" triangular units in 1-5.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Oxidative Addition; Bimetallic; Iridium; Rhodium; Tin Halides |
| ID Code: | 42958 |
| Deposited On: | 08 Jun 2011 08:38 |
| Last Modified: | 08 Jun 2011 08:38 |
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