Porphyrin-Azobenzene-Bodipy Triads: Syntheses, Structures, and Photophysical Properties

Org Lett. 2017 May 19;19(10):2654-2657. doi: 10.1021/acs.orglett.7b00988. Epub 2017 May 3.

Abstract

Cyclic and acyclic azobenzene bridged porphyrin-dipyrrin derivatives were successfully prepared via Suzuki-Miyaura coupling reaction of α,α'-diborylated dipyrromethane with bromoazophenyl porphyrin or reaction of borylated porphyrin with dibromoazophenyl dipyrrin, and the corresponding porphyrin-Bodipy derivatives were obtained by subsequent boron complexation. The cyclic porphyrin-dipyrrin compound 3Ni was confirmed by X-ray diffraction. The low fluorescence quantum yields of azobenzene bridged porphyrin-Bodipy can be ascribed to the presence of the intramolecular charge transfer state.

Publication types

  • Research Support, Non-U.S. Gov't