Stable near-infrared anionic polymethine dyes: structure, photophysical, and redox properties

Org Lett. 2008 Oct 2;10(19):4159-62. doi: 10.1021/ol801416n. Epub 2008 Sep 10.

Abstract

The concept of cyanine has been successfully extended to an anionic heptamethine dye featuring tricyanofuran (TCF) moieties in terms of structure, reactivity, and photophysical properties. Importantly, absorption and emission are red-shifted compared to its classical cationic analog without any cost in terms of thermal stability. In addition to its "cyanine" behavior, this molecule exhibits further redox properties: oxidation and reduction led to the reversible formation of radical species whose absorption is in marked contrast with that of cyanines.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbocyanines / chemistry*
  • Coloring Agents / chemistry*
  • Furans / chemistry
  • Infrared Rays*
  • Oxidation-Reduction

Substances

  • Carbocyanines
  • Coloring Agents
  • Furans