A rigid tripodal receptor capable of recognizing the uranyl ion has been developed. The new receptor features three carboxylates that converge to recognize the uranyl ion and satisfy its equatorial coordination preferences through bidentate interactions while the nearby amides hydrogen bond to one of the uranyl oxygen atoms. The receptor has been modified for attachment to a solid support. The ability of the new material to extract uranium from aqueous solutions is investigated.

Recognition and extraction of the uranyl ion

243rd National Meeting (2012)

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