Synthesis of linear monodisperse vinylene-linked phenothiazine oligomers

摘要

A series of linear monodisperse vinylene-linked phenothiazine oligomers have been synthesized by alternate Heck reaction and Wittig reaction in good yields.It was found that their absorption and fluorescence emission bands red-shifted with increasing phenothiazine units due to extending of the conjugated degree.The fluorescent quantum yield increased from OPTZ1 to OPTZ6,and the PHI_F of OPTZ6 was close to phenothiazine-based polymers.