4.4 Article

A new fluorescence probe based on diarylethene with a benzothiazine unit for selective detection of Cd2+

Journal

TETRAHEDRON
Volume 74, Issue 52, Pages 7431-7437

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2018.11.006

Keywords

Diarylethene; Cadmium; Fluorescence probe; Logic circuit

Funding

  1. National Natural Science Foundation of China [41867053]
  2. 5511 science and technology innovation talent project of Jiangxi [2016BCB18015]
  3. Natural Science Foundation of Jiangxi Province [20171ACB20025]
  4. Young Talents Project of Jiangxi Science and Technology Normal University [2015QNBJRC004]
  5. Project of Jiangxi Science and Technology Normal University Advantage Sci-Tech Innovative Team [2015CXTD002]

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A novel photochromic diarylethene derivative containing a benzothiazine unit has been synthesized. Its photochromism and fluorescent selectivity to metal ions were studied in detail in methanol solution. Under the stimulation of Cd2+ ions, the derivative showed a significant fluorescence enhancement and obvious red shift, accompanied by the fluorescent color changed from dark purple to bright blue. The 1:1 stoichiometry between the derivative and Cd2+ was verified by titration experiments and high resolution mass spectrometry. In addition, a molecular logic circuit was designed with the emission intensity at 476 nm as output and the stimuli of Cd2+/EDTA and UV/vis as inputs. (C) 2018 Elsevier Ltd. All rights reserved.

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