title: Dual-mode fluorescence switching of photochromic bisthiazolylcoumarin.
abstract: 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.
authors: Department of Advanced Materials Chemistry, Graduate School of Engineering, Yokohama National University, Hodogaya, Yokohama, 240-8501, Japan.
authors: Kazushi
authors: K
authors: Suzuki
authors: Takashi
authors: T
authors: Ubukata
authors: Yasushi
authors: Y
authors: Yokoyama