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We report the large scale syntheses and ‘oxidative purification’ of fcI2, fcBr2 and FcBr (fc = ferrocene-1,1′-diyl, Fc = ferrocenyl). These valuable starting materials are typically laborious to separate via conventional techniques, but can be readily isolated by taking advantage of their increased E1/2 relative to FcH/FcX contaminants. Our work extends this methodology towards a generic tool for the separation of redox active mixtures.
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