Mechanism of Charge-transfer Polymerization. III. Flash Photolysis ofN-Vinylcarbazole–Chloranil System

Charge motion in MbCO crystals after flash photolysis.

Charge motion accompanying the dissociation and recombination of carbon monoxide to oriented myoglobin crystals has been observed. The magnitude of the electrical signals detected after photodissociation by electrodes on either side of MbCO crystals of type A is consistent with the x-ray data showing that the doubly charged iron ion lies in the mean heme plane when a ligand is bound and moves o...

DNA Circuit System and Charge Transfer Mechanism

Based on the accurate identification of chemical structures as electric elements, we described charge transport mechanism in a DNA molecule by a stepwise LC oscillatory circuitry, in which every base pair is a capacitor, every phosphate bridge is an inductor, and every deoxyribose is a charge router. The circuit model agrees with established experimental evidence that has supported super-exchan...

Flash photolysis of caged compounds

Photolabile ‘caged’ compounds are biologically inert precursors of active molecules, which when irradiated with a pulse of light free the active species at its site of action (see Fig. 1). Speed is the principal advantage offered by these probes; photochemical reactions can be very fast, with release of the active species often complete within a millisecond. The method can thus be used to study...

Flash photolysis and some of its applications.

Laser-flash-photolysis-spectroscopy: a nondestructive method?

Herein, we report the effect of the laser illumination during the diffuse-reflectance laser-flash-photolysis measurements on the morphological and optical properties of TiO2 powders. A grey-blue coloration of the TiO2 nanoparticles has been observed after intense laser illumination. This is explained by the formation of nonreactive trapped electrons accompanied by the release of oxygen atoms fr...