Research Progress

Porphyrins with Four Monodisperse Oligofluorene Arms as Efficient Red Light-Emitting Materials

Date: 05-17-2004   source: Zhishan Bo   Print

Binsong Li, Jing Li, Yaqin Fu, and Zhishan Bo*


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.


J. Am. Chem. Soc. 2004, 1263430-3431

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