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Two-Photon Circularly Polarized Luminescence of Chiral Eu Complexes

Willis, Oliver G.; Petri, Filippo; De Rosa, Davide F.; Mandoli, Alessandro; Pal, Robert; Zinna, Francesco; Di Bari, Lorenzo

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Authors

Oliver G. Willis

Filippo Petri

Davide De Rosa davide.f.de-rosa@durham.ac.uk
PGR Student Doctor of Philosophy

Alessandro Mandoli

Francesco Zinna

Lorenzo Di Bari



Abstract

We report the synthesis of chiral lanthanide complexes with extended π conjugation for efficient circularly polarized luminescence (CPL) via two-photon excitation (2PE). The pyridine bis-oxazoline (PyBox) core provides the chiral Ln3+ environment, while the extension of the conjugated backbone through the pyridine 4-position with a phenylacetylene unit increases the two-photon absorption cross section. This work presents an important step toward the development of chiral systems displaying enhanced nonlinear optical properties, with potential applications in imaging and sensing, as well as in photodynamic therapy due to the selective excitation of molecules within a specific focal volume.

Citation

Willis, O. G., Petri, F., De Rosa, D. F., Mandoli, A., Pal, R., Zinna, F., & Di Bari, L. (2023). Two-Photon Circularly Polarized Luminescence of Chiral Eu Complexes. Journal of the American Chemical Society, 145(46), 25170-25176. https://doi.org/10.1021/jacs.3c05957

Journal Article Type Article
Acceptance Date Oct 18, 2023
Online Publication Date Nov 8, 2023
Publication Date Nov 22, 2023
Deposit Date Nov 8, 2023
Publicly Available Date Nov 8, 2023
Journal Journal of the American Chemical Society
Print ISSN 0002-7863
Electronic ISSN 1520-5126
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 145
Issue 46
Pages 25170-25176
DOI https://doi.org/10.1021/jacs.3c05957
Public URL https://durham-repository.worktribe.com/output/1901868

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