Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 45, Pages 14841-14846Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201809357
Keywords
bismuth; block copolymers; heterocycles; phosphorescence; time-dependent density functional theory
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Funding
- NSERC of Canada
- Canada Foundation for Innovation
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [400179/2014-8]
- Deutsche Forschungsgemeinschaft (DFG) [HU 2512/1-1]
- Killam Trust
- Natural Science Foundation of China [21704081, 21875180]
- Cyrus Chung Ying Foundation
- Alexander von Humboldt Foundation
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The synthesis of the first bismuth-containing macromolecules that exhibit phosphorescence in the solid state and in the presence of oxygen is reported. These red emissive high molecular weight polymers (>300kDa) feature benzobismoles appended to a hydrocarbon scaffold, and were built via an efficient ring-opening metathesis (ROMP) protocol. Moreover, our general procedure readily allows for the formation of cross-linked networks and block copolymers. Attaining stable red phosphorescence with non-toxic elements remains a challenge and, thus, our new class of soluble (processable) polymeric phosphor is of great interest. Furthermore, the formation of bismuth-rich cores within organic-inorganic block copolymer spherical micelles is possible, leading to patterned arrays of bismuth in the film state.
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