Circularly polarized luminescence from helically chiral N,N,O,O-boron-chelated dipyrromethenes

Alnoman, R. B. et al. (2016) Circularly polarized luminescence from helically chiral N,N,O,O-boron-chelated dipyrromethenes. Chemistry: A European Journal, 22(1), pp. 93-96. (doi:10.1002/chem.201504484) (PMID:26555772) (PMCID:PMC4736443)

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Abstract

Helically chiral N,N,O,O-boron chelated dipyrromethenes showed 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 ×10−3) and fluorescence quantum yields (ΦF up to 0.73) gave exceptionally efficient circularly polarized red emission from these simple small organic fluorophores, enabling future application in CPL-based bioimaging.

Item Type:Articles
Additional Information:Newcastle University (NCL) BBSRC. Grant Number: BB/K013971/1 Department of Chemistry, Faculty of Science, Taibah University, Saudi Arabia EPSRC. Grant Number: EP/F03637X/1 Diamond Light Source
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Peacock, Dr Robert
Authors: Alnoman, R. B., Rihn, S., O'Connor, D. C., Black, F. A., Costello, B., Waddell, P. G., Clegg, W., Peacock, R. D., Herrebout, W., Knight, J. G., and Hall, M. J.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Chemistry: A European Journal
Publisher:Wiley
ISSN:0947-6539
ISSN (Online):1521-3765
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Chemistry: A European Journal 22(1):93-96
Publisher Policy:Reproduced under a Creative Commons License

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