Title
Synthesis and structural characterization of (perfluoroalkyl) fluoroiridium(III) and (perfluoroalkyl)methyliridium(III) compounds
Document Type
Article
Publication Date
7-3-2006
Abstract
A new family of metal perfluoroalkyl fluoro compounds has been obtained by treatment of the iodo precursors Cp*Ir(PMe 3)(R F)I with AgF in CH 2Cl 2 solution in the dark to give Cp*Ir(PMe 3)(R F)F (R F = CF 3, CF 2CF 3, CF 2CF 2CF 3, CF(CF 3) 2, CF(CF 3)(CF 2CF 3)). The molecular structures of the compounds with RF = CF 2CF 3, CF 2CF 2CF 3, CF(CF 3) 2 have been determined crystallographically. These fluoro compounds provide a ready and reproducible route to the analogous methyl complexes Cp*Ir(PMe 3)-(R F)CH 3, by treatment with exactly 0.5 equiv of Zn(CH 3) 2 at low temperatures in toluene. Alkylation with other reagents such as CH 3Li and Cp 2Zr(CH 3) 2 leads to inseparable mixtures. This metathesis of Ir-F and Zn-CH 3 represents the only way to date for the clean reproducible synthesis of Cp*Ir(PMe 3)-(R F)CH 3 compounds containing primary perfluoroalkyl groups. The molecular structures of Cp*Ir(PMe 3)-(R F)CH 3 (R F = CF 2CF 3, CF 2CF 2CF 3) have been determined crystallographically. © 2006 American Chemical Society.
Publication Source (Journal or Book title)
Organometallics
First Page
3474
Last Page
3480
Recommended Citation
Bourgeois, C., Garratt, S., Hughes, R., Larichev, R., Smith, J., Ward, A., Willemsen, S., Zhang, D., DiPasquale, A., Zakharov, L., & Rheingold, A. (2006). Synthesis and structural characterization of (perfluoroalkyl) fluoroiridium(III) and (perfluoroalkyl)methyliridium(III) compounds. Organometallics, 25 (14), 3474-3480. https://doi.org/10.1021/om060267s