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Highly Emissive Far Red/Near‐IR Fluorophores Based on Borylated Fluorene–Benzothiadiazole Donor–Acceptor Materials
Author(s) -
Crossley Daniel L.,
VitoricaYrezabal Inigo,
Humphries Martin J.,
Turner Michael L.,
Ingleson Michael J.
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201602010
Subject(s) - negishi coupling , fluorene , stille reaction , photochemistry , acceptor , chemistry , fluorescence , homo/lumo , polymer , polymer chemistry , molecule , organic chemistry , catalysis , optics , physics , condensed matter physics
Stille, Suzuki–Miyaura and Negishi cross‐coupling reactions of bromine‐functionalised borylated precursors enable the facile, high yielding, synthesis of borylated donor–acceptor materials that contain electron‐rich aromatic units and/or extended effective conjugation lengths. These materials have large Stokes shifts, low LUMO energies, small band‐gaps and significant fluorescence emission >700 nm in solution and when dispersed in a host polymer.