Dual-mode fluorescence switching of photochromic bisthiazolylcoumarin.

نویسندگان

  • Kazushi Suzuki
  • Takashi Ubukata
  • Yasushi Yokoyama
چکیده

Three new photochromic coumarins were synthesized. Fluorescence of the open form of 7-hydroxy-3,4-bisthiazolyl-coumarin increased to 1400% by changing the pH only slightly from 6.05 to 7.58. This was subsequently quenched to 1.5% of the maximum intensity at the UV photostationary state in water-methanol media.

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عنوان ژورنال:
  • Chemical communications

دوره 48 5  شماره 

صفحات  -

تاریخ انتشار 2012