Metal-Directed Synthesis of Enantiomerially Pure Dimetallic Lanthanide Luminescent Triple-Stranded Helicates

Floriana Stomeo, Christophe Lincheneau, Joseph P. Leonard, John E. O'Brien, Robert D. Peacock, Colin P. McCoy, Thorfinnur Gunnlaugsson

Research output: Contribution to journalArticlepeer-review

108 Citations (Scopus)


The synthesis and photophysical evaluation of two enatiomerially pure dimetallic lanthanide luminescent triple-stranded helicates is described. The two systems, formed from the chiral (R,R) ligand 1 and (S,S) ligand 2, were produced as single species in solution, where the excitation of either the naphthalene antennae or the pyridiyl units gave rise to Eu(III) emission in a variety of solvents. Excitation of the antennae also gave rise to circularly polarized Eu(III) luminescence emissions for Eu2:13 and Eu2:23 that were of equal intensity and opposite sign, confirming their enantiomeric nature in solution providing a basis upon which we were able to assign the absolute configurations of Eu2:13 and Eu2:23.
Original languageEnglish
Pages (from-to)9636-9637
Number of pages2
JournalJournal of the American Chemical Society
Issue number28
Early online date24 Jun 2009
Publication statusPublished - 22 Jul 2009

ASJC Scopus subject areas

  • Biochemistry
  • Catalysis
  • Colloid and Surface Chemistry
  • Chemistry(all)

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