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J Am Chem Soc. 2005 Oct 5;127(39):13567-72.

Unique emission from polymer based lanthanide alloys.

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  • 1Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Amherst, Massachusetts 01003, USA.


The incorporation of metal-ligand interactions into macromolecules imparts them with unique and potentially useful properties. We report novel macromolecules prepared via ATRP that contain activated esters for subsequent incorporation of terpyridine. The addition of lanthanide ions (Eu3+ and Tb3+) gave metal functionalized polymers that exhibited excellent emission of either pink (Eu3+) or green (Tb3+) light. A unique yellow luminescence was generated when these two different metal ions were incorporated into the same molecular backbone at a 1:1 ratio, producing an alloy. Upon heating above 50 degrees C, selective thermochromism, from yellow to orange/pink, was observed.

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