Porphyrins with four monodisperse oligofluorene arms as efficient red light-emitting materials

Binsong Li; Jing Li; Yaqin Fu; Zhishan Bo

doi:10.1021/ja039832y

Porphyrins with four monodisperse oligofluorene arms as efficient red light-emitting materials

J Am Chem Soc. 2004 Mar 24;126(11):3430-1. doi: 10.1021/ja039832y.

Authors

Binsong Li¹, Jing Li, Yaqin Fu, Zhishan Bo

Affiliation

¹ State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.

PMID: 15025463
DOI: 10.1021/ja039832y

Abstract

A family of red light-emitting star-shaped porphyrins with four monodisperse conjugated oligofluorene arms was prepared by using two key reactions: Lindsey condensation and Suzuki-Miyaura cross coupling reactions. All porphyrins exhibit high quantum yields (about 0.22) and good solubility in common organic solvents, and form high-quality solid films. Optical studies showed that the star-shaped oligomers could absorb blue light and emit saturated red light via efficient energy transfer from the fluorene segments to the porphyrin core.