Tunable photochromism in the robust dithienylethene-containing phospholes: Design, synthesis, characterization, electrochemistry, photophysics, and photochromic studies

Jacky Chi Hung Chan, Hok Lai Wong, Wing Tak Wong, Vivian Wing Wah Yam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

KGaA, Weinheim. A series of dithienylethene-containing phosphole derivatives has been designed, synthesized and characterized. One of the compounds has been characterized by X-ray crystallography. Upon photoexcitation, the compounds exhibit drastic color changes, ascribed to the reversible photochromic behavior. Their photochromic, photophysical and electrochemical properties have been studied. They show photochromic reactivities with high photocyclization quantum yields. Their photophysical and photochromic properties are found to be facilely tuned in this system by substitution at the phosphole backbone, as well as variation on the extent of π-conjugation of the phosphole backbone. Some selected compounds have been demonstrated to exhibit photochromic properties in polymethylmethacrylate (PMMA) films.
Original languageEnglish
Pages (from-to)6936-6948
Number of pages13
JournalChemistry - A European Journal
Volume21
Issue number18
DOIs
Publication statusPublished - 27 Apr 2015

Keywords

  • optical properties
  • phosphorus heterocycles
  • photochromism
  • photophysics
  • thiophenes

ASJC Scopus subject areas

  • Chemistry(all)

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