Circularly Polarized Luminescence from Helically Chiral N,N,O,O-Boron-Chelated Dipyrromethenes

Academic Article

Abstract

  • ©2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Helically chiral N,N,O,O-boron chelated dipyrromethenes showed solution-phase circularly polarized luminescence (CPL) in the red region of the visible spectrum (λ em (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 (|g lum | up to 4.7 ×10 -3 ) and fluorescence quantum yields (Φ F up to 0.73) gave exceptionally efficient circularly polarized red emission from these simple small organic fluorophores, enabling future application in CPL-based bioimaging.
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • Alnoman RB; Rihn S; O'Connor DC; Black FA; Costello B; Waddell PG; Clegg W; Peacock RD; Herrebout W; Knight JG
  • Start Page

  • 93
  • End Page

  • 96
  • Volume

  • 22
  • Issue

  • 1