meso-Substituted bisanthenes as soluble and stable near-infrared dyes

J Org Chem. 2010 Feb 5;75(3):856-63. doi: 10.1021/jo902413h.

Abstract

Three meso-substituted bisanthenes, 4-6, were prepared in a short synthetic route from the bisanthenequinone. They exhibit largely improved stability and solubility in comparison to the parent bisanthene. All of these compounds also show near-infrared (NIR) absorption and emission with high to moderate fluorescence quantum yields. Amphoteric redox behavior was observed for 4-6 by cyclic voltammetry, and these compounds can be reversibly oxidized and reduced into respective cationic and anionic species by both electrochemical and chemical processes. In addition, compound 5 adopts a herringbone pi-stacking motif in the single crystal.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anthracenes / chemical synthesis
  • Anthracenes / chemistry
  • Coloring Agents / chemistry*
  • Crystallography, X-Ray
  • Molecular Structure
  • Solubility
  • Spectroscopy, Near-Infrared

Substances

  • Anthracenes
  • Coloring Agents
  • bisantrene