Dithienylethenes containing the thiophene rings with benzothiazolyl substituents in position 2 were synthesized. 1,2-Bis]2-(benzothiazol-2-yl)benzothiophen-3-yl]hexafluorocyclopentene and 1,2-bis]2,5-di(benzothiazol-2-yl)-3-thienyl]hexafluorocyclopentene possess photochromic properties. The open forms of 1,2-bis(2-benzothiazolyhetaryl)ethenes fluoresce, but introduction of the benzothiazole rings into dihetarylethenes significantly lowers the fatigue resistance of photochromes and favors thermal reversibility.
Systematic studies of structural variations in terarylene photohydride generators
作者:Colin J. Martin、Jan Patrick Calupitan、Miho Minamide、Ryosuke Asato、Yora Goto、Gwénaël Rapenne、Takuya Nakashima、Tsuyoshi Kawai
DOI:10.1016/j.jphotochem.2020.112594
日期:2020.6
systematic study of structural and conformational variations in a series of terarylene molecules designed for use as photohydride generators. This family of compounds have been shown to facilitate self-contained hydride release, without the need for external sources of hydrogen in a manner analogous to previously reported photoacidgenerators. A systematic analysis has been carried out on the effects of minor
作者:M. M. Krayushkin、F. M. Stoyanovich、O. Yu. Zolotarskaya、I. V. Murav"ev、A. Yu. Martynkin、B. M. Uzhinov
DOI:10.1023/a:1015052017059
日期:——
Dithienylethenes containing the thiophene rings with benzothiazolyl substituents in position 2 were synthesized. 1,2-Bis]2-(benzothiazol-2-yl)benzothiophen-3-yl]hexafluorocyclopentene and 1,2-bis]2,5-di(benzothiazol-2-yl)-3-thienyl]hexafluorocyclopentene possess photochromic properties. The open forms of 1,2-bis(2-benzothiazolyhetaryl)ethenes fluoresce, but introduction of the benzothiazole rings into dihetarylethenes significantly lowers the fatigue resistance of photochromes and favors thermal reversibility.
Highly emissive B←N unit containing four-coordinate C,N-Chelated organoboron compound for the detection of fluoride ions
The highly emissive B←N unit containing four-coordinate C,N-chelated organoboron compound, 2 was synthesized. This air and moisture stable compound can be used as a turn-off type fluorescent fluoride (F−) sensor in THF with good selectivity and reversibility. The DFT calculation and the fluorescence quenching titration results showed that the mechanism of the sensing process was based on a competing