43185-52-0Relevant articles and documents
Highly Fluorescent Red-Light Emitting Bis(boranils) Based on Naphthalene Backbone
Urban, Mateusz,Durka, Krzysztof,Jankowski, Piotr,Serwatowski, Janusz,Luliński, Sergiusz
, p. 8234 - 8241 (2017/08/14)
Ten bis(boranils) differently substituted at the boron atom and iminophenyl groups were synthesized from 1,5-dihydroxynaphthalene-2,6-dicarboxaldehyde using a simple one-pot protocol. Their photophysical properties can be easily tuned in a wide range by the variation of substituents. Their absorption and emission spectral bands are significantly red-shifted (λmax = 495-590 nm, λem = 533-683 nm) when compared with simple boranils, whereas fluorescence quantum yields are strongly improved to reach 83%. The attachment of pendant NO2 and NEt2 groups at the opposite positions of the π-conjugated bis(boranil) scaffold resulted in the formation of an unprecedented system featuring push-pull architecture.