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The Synthesis and Characterization of Highly Fluorescent Polycyclic Azaborine Chromophores
Carl Jacky Saint-Louis1, Lacey L Magill1, Julie A Wilson1
1Department of Chemistry, University of West Florida , Pensacola, Florida 32514, United States.
Abstract:
Six new heteroaromatic polycyclic azaborine chromophores were designed, synthesized, and investigated as easily tunable high-luminescent organic materials. The impact of the nitrogen-boron-hydroxy (N-BOH) unit in the azaborines was investigated by comparison with their N-carbonyl analogs. Insertion of the N-B(OH)-C unit into heteroaromatic polycyclic compounds resulted in strong visible absorption and sharp fluorescence with efficient quantum yields. The solid-state fluorescence of the heteroaromatic polycyclic compounds displayed a large Stokes shift compared to being in solution. The large Stokes shifts observed offset the self-quench effect in the solid state.
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