A molecular basis to rare earth separations for recycling: tuning the TriNOx ligand properties for improved performance. Issue 73 (24th August 2018)

• Record Type: Journal Article
• Authors: Cole, Bren E.; Falcones, Ingemar B.; Cheisson, Thibault; Manor, Brian C.; Carroll, Patrick J.; Schelter, Eric J.
• Is Part Of: Chemical communications. Volume 54:Issue 73(2018)
• Page Start: 10276
• Page End: 10279
• Publication Date: 2018-08-24
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc04409k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A methoxy-substituted tripodal hydroxylamine ligand, H3 TriNOx OMe, was synthesized and coordinated to rare earth cations for separation purposes. Abstract : A methoxy-substituted tripodal hydroxylamine ligand, H3 TriNOx OMe, was synthesized and coordinated to rare earth cations for separation purposes. Metrics of the resulting complexes were investigated and compared with their parent TriNOx 3− counterparts for determination of the molecular basis for the described rare earth separation system. Addition of an electron donating group to the aryl backbone resulted in a more electron rich ligand that increased the equilbrium constant for complex dimerization five-fold. The new separation system yielded efficient Nd/Dy separations in toluene rather than benzene.