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- Title
Marigold Flower‐Like Assemblies of Phosphorescent Iridium–Silver Coordination Polymers.
- Authors
Rota Martir, Diego; Rajamalli, Pachaiyappan; Cordes, David B.; Slawin, Alexandra M. Z.; Zysman‐Colman, Eli
- Abstract
Racemic and enantiopure phosphorescent iridium(III)–silver(I) coordination polymers are reported. The polymers rac‐, Λ‐, and Δ‐IrAg were formed, respectively, by the assembly of the chiral iridium metalloligands rac‐, Λ‐, and Δ‐[Ir(mesppy)2(qpy)]PF6 (rac‐, Λ‐ and Δ‐Ir) where mesppy is 2‐phenyl‐4‐mesitylpyridinato and qpy is 4,4′:2′,2′′:4′′,4′′′‐quaterpyridine, and Ag+ ions through Npy–Ag linear coordination. The polymers have been characterized in MeNO2 solution by 1H and 1H DOSY NMR and CD spectroscopies and in the solid‐state by scanning electron microscopy (SEM). The crystal structures of the racemic polymer rac‐IrAg has been obtained by X‐ray diffraction. The polymers rac‐, Λ‐, and Δ‐IrAg exhibited orange/red emission in solution, in films and as crystals, with intensities comparable to those of the corresponding iridium metalloligands rac‐, Λ‐, and Δ‐Ir. The morphology of the enantiopure polymers in the solid‐state resembles marigold flower‐like nano‐porous assemblies while the racemic polymer possesses an irregular morphology formation. Racemic and enantiopure phosphorescent iridium(III)‐silver(I) coordination polymers that exhibit orange/red emission are reported. The morphology of the enantiopure polymers in the solid‐state resembles marigold flower‐like porous assemblies while the racemic polymer possesses an irregular morphology.
- Subjects
SILVER; POLYMERS; PHOSPHORESCENCE; IRIDIUM; MARIGOLDS
- Publication
Macromolecular Rapid Communications, 2018, Vol 39, Issue 22, pN.PAG
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201800501