Dithienylethene metallodendrimers with high photochromic efficiency

Yuxuan Wang, Qifeng Zhou, Xiaoxiao He, Ying Zhang, Hongwei Tan, Jianhua Xu, Cuihong Wang, Wei Wang, Xiping Luo, Jinquan Chen, Lin Xu

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

It has been challenging to achieve multi-photochromic systems without affecting the individual photoswitching properties of the constituent units. Herein, we present the design and synthesis of a new family of platinum-acetylide dendrimers containing up to twenty-one photochromic dithienylethene (DTE) units that exhibit both high photochromic efficiency and individual switching properties. Upon irradiation with ultraviolet (UV) and visible (vis) light, the resultant metallodendrimers display high conversion yield and good fatigue resistance. More interestingly, cyclization-cycloreversion kinetics revealed that the photochromic property of each DTE unit in these metallodendrimers is unaffected by its neighbor and the full ring-closure of up to twenty-one DTE units in one single dendrimer has been achieved.

Original languageEnglish
Pages (from-to)1613-1618
Number of pages6
JournalChinese Chemical Letters
Volume33
Issue number3
DOIs
StatePublished - Mar 2022

Keywords

  • Dendrimers
  • Dithienylethene
  • Photochromic compounds
  • Platinum-acetylide complexes
  • Stimulus response

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