Highly Deep-Blue Luminescent Twisted Diphenylamino Terphenyl Emitters by Bromine-Lithium Exchange Borylation-Suzuki Sequence.

Julia WiefermannPhilipp SchmeinckChristian GanterThomas J J Müller

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2022)

Four novel intensively blue luminescent chromophores were readily synthesized by bromine-lithium exchange borylation-Suzuki (BLEBS) sequence in moderate to good yields. Their electronic properties were studied by absorption and emission spectroscopy and quantum chemical calculations revealing deep-blue emission in solution as well as in the solid state and upon embedding into a PMMA (polymethylmethacrylate) matrix with small FWHM (full width at half maximum) values and CIE y values smaller than 0.1. Moreover, high photoluminescence quantum yields (PLQY), partially close to unity, are found.

Keyphrases

solid state
light emitting
energy transfer
molecular dynamics
quantum dots
monte carlo
sensitive detection
molecular dynamics simulations
high intensity
high resolution