Premium
Synthesis and Optical Properties of Imidazole‐Based Fluorophores having High Quantum Yields
Author(s) -
Lessi Marco,
Manzini Chiara,
Minei Pierpaolo,
Perego Luca A.,
Bloino Julien,
Egidi Franco,
Barone Vincenzo,
Pucci Andrea,
Bellina Fabio
Publication year - 2014
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201300413
Subject(s) - imidazole , excited state , fluorescence , luminescence , molecule , photochemistry , stokes shift , regioselectivity , chemistry , quantum yield , chemical mechanical planarization , phenylene , quantum , materials science , nanotechnology , optoelectronics , atomic physics , organic chemistry , physics , polymer , optics , quantum mechanics , catalysis , layer (electronics)
A series of 1,4‐phenylene‐spaced bis‐imidazoles with fluorescence quantum yields up to 0.90 and large Stokes shifts have been designed and synthesized using recently developed regioselective direct CH arylation protocols. All the fluorophores show a bright blue‐green emission that is well retained in the solid state. DFT calculations attributed their excellent luminescence properties to the significant planarization of the molecules in the equilibrium structures of their excited electronic states.