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J Org Chem. 2016 Nov 18;81(22):10955-10963. doi: 10.1021/acs.joc.6b01998. Epub 2016 Oct 25.

The Synthesis and Characterization of Highly Fluorescent Polycyclic Azaborine Chromophores.

The Journal of organic chemistry

Carl Jacky Saint-Louis, Lacey L Magill, Julie A Wilson, Andrew R Schroeder, Sarah E Harrell, Nicolle S Jackson, Jamie A Trindell, Saraphina Kim, Alexander R Fisch, Lyndsay Munro, Vincent J Catalano, Charles Edwin Webster, Pamela P Vaughan, Karen S Molek, Alan K Schrock, Michael T Huggins

Affiliations

  1. Department of Chemistry, University of West Florida , Pensacola, Florida 32514, United States.
  2. School of Medicine, University of Alabama , 1825 University Boulevard, Birmingham, Alabama 35294, United States.
  3. Department of Chemistry, University of Texas-Austin , 120 Inner Campus Dr., Austin, Texas 78712, United States.
  4. Department of Chemistry, University of Tennessee , 1420 Circle Dr., Knoxville, Tennessee 37996, United States.
  5. Department of Chemistry, University of Nevada, Reno , Reno, Nevada 89557, United States.
  6. Department of Chemistry, Mississippi State University , Mississippi State, Mississippi 39762, United States.

PMID: 27704820 DOI: 10.1021/acs.joc.6b01998

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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