Large protonation-gated photochromism of an OPE-embedded difurylperfluorocyclopentene

Large protonation-gated photochromism of an OPE-embedded difurylperfluorocyclopentene.

A recently reported protolytic gating effect on the ring closing reaction of an oligo(phenylene ethynylene) (OPE) embedded difurylperfluorocyclopentene (S) with a dimethylaminophenyl chain link in each of the side arms, was quantitatively analyzed in detail. The reaction system (So, SoH(+), SoH2(2+), Sc, ScH(+), ScH2(2+)) comprising three protolytic forms in both open and closed configuration, ...

CB[8] gated photochromism of a diarylethene derivative containing thiazole orange groups.

Photochromism in a diarylethene derivative (1O) can be gated by a host-guest interaction where the thiazole orange groups are bound into the hydrophobic cavity of CB[8] in water. The closed-ring isomer (1C), which cannot be obtained freely in aqueous solution, survives even when the complex is dissociated by displacement from CB[8] by competition with 1-adamantanamine hydrochloride.

DNA gated photochromism and fluorescent switch in a thiazole orange modified diarylethene.

Thiazole orange-modified diarylethene (1) shows weak fluorescence but no photochromism in aqueous solution. When binding with DNA, the fluorescence of 1 is enhanced drastically and the photochromic reactivity is unlocked. This kind of DNA-responsive photoswitchable system can be used for imaging nucleic acids within cells.

Image restoration methods for the Large Bino ularTeles ope ( LBT )

Current correlators in QCD : OPE versus large distance dynamics

Current correlators in QCD: OPE versus large distance dynamics. Abstract We analyse the structure of current-current correlators in coordinate space in large N c limit when the corresponding spectral density takes the form of an infinite sum over hadron poles. The latter are computed in the QCD string model with quarks at the ends, including the lowest states, for all channels. The correspondin...