Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (9): 20240201.doi: 10.7503/cjcu20240201

• Organic Chemistry • Previous Articles     Next Articles

Synthesis, Photochromism and Fluorescence of Naphthopyran-tetraphenylethylene Hybrid

LIU Kejun1,2, WEI Ruiqi1,2, ZHOU Ruiyuan2, SHEN Ripei2, HAN Jie2()   

  1. 1.College of Chemistry and Environmental Science,Kashi University,Kashi 844008,China
    2.Key Laboratory of Advanced Energy Material Chemistry,College of Chemistry,Nankai University,Tianjin 300071,China
  • Received:2024-04-22 Online:2024-09-10 Published:2024-07-05
  • Contact: HAN Jie E-mail:hanjie@nankai.edu.cn
  • Supported by:
    the Innovation Program for Novel Photochromic Materials from Tianjin Forsheen Optical Ltd., China(F1035631)

Abstract:

A novel class of naphthopyran-tetraphenylethylene hybrids NP1—NP5 were designed and synthesized, and their photochromic and fluorescent properties were investigated in detail. Compared to 2,2-diphenyl-2H-benzo[h]chromene(NP0), the thermal fading rate of NP5 has significantly improved with the fastest half-time(τ1/2) of 0.75 min. Such kind of compounds also exhibited fast photo-responsive speed and excellent fatigue resistance. In addition, the tetrahydrofuran solution of NP2 is fluorescent, which can be quenched by an irradiation with 360 nm UV light. However, no aggregation-induced emission was observed for these compounds.

Key words: Photo-functional material, Naphthopyran, Aggregation-induced emission

CLC Number: 

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