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Lookup NU author(s): Rua Alnoman, Dr Sandra Rihn, Fiona Black, Dr Paul Waddell, Professor William Clegg, Dr Julian Knight, Dr Michael HallORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Helically chiral N,N,O,O-boron chelated dipyrromethenes show solution-phase circularly polarized luminescence (CPL) in the red region of the visible spectrum (λem(max) from 621 to 663 nm). The parent dipyrromethene is desymmetrised through O-chelation of boron by the 3,5-ortho-phenolic substituents, inducing a helical chirality in the fluorophore. The combination of high luminescence dissymmetry factors (|glum| up to 4.7 x10-3) and fluorescence quantum yields (ΦF up to 0.73) results in exceptionally efficient circularly polarized red emission from these simple small organic fluorophores, enabling future application in CPL-based bioimaging.
Author(s): Alnoman RB, Rihn S, OConnor DC, Black FA, Costello B, Waddell PG, Clegg W, Peacock RD, Herrebout W, Knight JG, Hall MJ
Publication type: Article
Publication status: Published
Journal: Chemistry - A European Journal
Year: 2016
Volume: 22
Issue: 1
Pages: 93-96
Print publication date: 04/01/2016
Online publication date: 11/11/2015
Acceptance date: 09/11/2015
Date deposited: 01/12/2015
ISSN (print): 0947-6539
ISSN (electronic): 1521-3765
Publisher: Wiley
URL: http://dx.doi.org/10.1002/chem.201504484
DOI: 10.1002/chem.201504484
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