Facile synthesis and characterization of new photochromic trans-dithienylethenes functionalized with pyridines and fluorenes.

@article{Luo2010FacileSA,
  title={Facile synthesis and characterization of new photochromic trans-dithienylethenes functionalized with pyridines and fluorenes.},
  author={Qianfu Luo and Yi Liu and Xin Li and He Tian},
  journal={Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology},
  year={2010},
  volume={9 2},
  pages={234-8}
}
Three symmetrical and unsymmetrical trans-dithienylethenes functionalized with pyridines and fluorenes have been synthesized by a facile one-pot procedure, and their characteristics and photochromism were investigated. Their fluorescent intensity was efficiently regulated by a photochromic switch using alternative irradiation with UV light and visible light. Moreover, by protonation and complexation, the pyridyl-substituted compounds also showed excellent photoswitching properties with… CONTINUE READING