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Spontaneous Formation of Novel Luminescent Dinuclear Lanthanide Complexes That Emit in the Visible and Near-IR Regions

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posted on 04.04.2011, 00:00 by Claire Butler, Sandrine Goetz, Christopher M. Fitchett, Paul E. Kruger, Thorfinnur Gunnlaugsson
The reaction of tetrasodium-4,4′,6,6′-tetracarboxy-2,2′-bipyridine (Na4L) with various lanthanide ions yields a family of isostructural supramolecular {Na2[Ln2L2]} complexes (14), where LnIII = Eu, Nd, Gd, and Tb. Strikingly, these complexes luminesce in buffered H2O or D2O solutions in either the visible or near-IR regions, despite their high hydration states.

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