The Synthesis And Characterization Of The Photochromic Bisthienylethene

As diarylethene have excellent photochromic properties, chemists have been engaged in unremitting exploration and research. Because of its execellent thermal stability, great fatigue resistance, fast response and high quantum yied that such compounds seem inexhaustible. In this article diarylethylene as the main functional groups coordinated to achieve interrelated with other functions of the functional group, the switching regulator mechanism associated with each other in response to the formation, just like light control switch. Moreover, the photochromic properties of diarylethene is applied to the field of molecular detection, and achieved the expected results.Chapter 1 briefly describes the types of photochromic compounds, color performance,color mechanism and the advantages and disadvantages, as well as in research and development status of various types of photochromic compounds. Focuses on diarylethylene photochromic compound discoloration principle were introduced, and its switch as a fluorescent molecule and cell fluorescence.Chapter 2 reported a new europium complex coordinated between an Eu(III) ion and a thermally stable unsymmetrical perfluorocyclopentene-based diarylethene, The new luminescent molecular switch showed excellent photochromic properties and efficient emission modulation both in solution and in solid-state filmsChapter 3 explored the molecular recognition probe, and explore the recognition mechanism of thiophenol and sodium hydrosulfide response to the probe.Chapter 4 studies the behavior of covalent molecule fluorescence switchChapter 5 Conclusions.