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Marigold flower-like assemblies of phosphorescent iridium-silver coordination polymers

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IrAg_polymer_10.pdf (1.310Mb)
Date
21/08/2018
Author
Rota Martir, Diego
Rajamalli, Pachaiyappan
Cordes, David B.
Slawin, Alexandra M. Z.
Zysman-Colman, Eli
Keywords
Iridium
Metalloligands
Metallopolymers
Phosphorescence
Silver
QD Chemistry
NDAS
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Abstract
Racemic and enantiopure phosphorescent iridium(III)-silver(I) coordination polymers are reported. The polymers rac-, Δ- and ΔΔΔΔ- IrAg were formed, respectively, by the assembly of the chiral iridium metalloligands rac-, Δ- and Δ-[Ir(mesppy)2(qpy)]PF6 (rac-, Δ- 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-, Δ- 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-, Δ- and Δ- Ir . The morphology of the enantiopure polymers in the solid-state resemble marigold flower-like nano-porous assemblies while the racemic polymer possesses an irregular morphology formation.
Citation
Rota Martir , D , Rajamalli , P , Cordes , D B , Slawin , A M Z & Zysman-Colman , E 2018 , ' Marigold flower-like assemblies of phosphorescent iridium-silver coordination polymers ' , Macromolecular Rapid Communications , vol. Early View , 1800501 . https://doi.org/10.1002/marc.201800501
Publication
Macromolecular Rapid Communications
Status
Peer reviewed
DOI
https://doi.org/10.1002/marc.201800501
ISSN
1022-1336
Type
Journal article
Rights
© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1002/marc.201800501
Description
EZ-C acknowledges the University of St Andrews and EPSRC (EP/M02105X/1) for financial support.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/18344

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