Synthesis of chromium(III) bis(benzamidinate) complexes via single electron oxidation
Single-electron oxidation of the known Cr(II) bis(amidinate) Cr[(Me3SiN)2CPh]2 (1) provides synthetic access to neutral Cr(III) complexes. The complexes Cr[(Me3SiN)2CPh]2X were prepared by reaction of 1 with AgO2CPh (X = O2CPh, 2), of 1 with iodine in THF (X = I/THF, 3), or of 1 with iodine in pentane, followed by addition of 2-adamantanone (X = I/2-adamantanone, 4). Treatment of 2 or 3 with C3H5MgCl resulted in the thermally stable allyl complex (X = η3-C3H5, 5). A preliminary kinetics study of the reaction of 1 with excess allyl benzoate and allyl acetate was performed. The molecular structures of 2, 3 and 5 were confirmed by single crystal X-ray diffraction. © 2007 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Journal of Organometallic Chemistry
Dykerman, B., Smith, J., McCarvill, E., Gallant, A., Doiron, N., Wagner, B., Jenkins, H., Patrick, B., & Smith, K. (2007). Synthesis of chromium(III) bis(benzamidinate) complexes via single electron oxidation. Journal of Organometallic Chemistry, 692 (15), 3183-3190. https://doi.org/10.1016/j.jorganchem.2007.01.053