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Dynamic quenching as a simple test for the mechanism of excited-state reaction
Abstract We report on comparative studies of dynamic fluorescence quenching of 3-hydroxyflavone (3HF) and of its novel analogs by nitric oxide spin compound TEMPO. These dyes exhibit the
Detection system for heavy element research: present status
PC-based detection system for heavy element research at the Dubna Gas-filled Recoil Separator is presented. It allows to operate with the experimental data obtained from the detection system of GFRS
Spectral properties of anionic form of 3-hydroxyflavone
The spectral and temporal characteristics of the fluorescence of the anionic form of some 3-hydroxiflavones in different solvents are studied. This form is observed under selective excitation in the
Dual fluorescence of N-pyrrolobenzonitrile in extended polyvinyl alcohol films
The possibility of radically changing the conditions for charge transfer (CT) photoreaction in N-pyrrolobenzonitrile molecules in polymer matrices of polyvinyl alcohol (PVA) under their extension has
Thermodynamic vs. kinetic control of excited-state proton transfer reactions
Abstract The “Excited-State Intramolecular Proton Transfer” (ESIPT) reactions in a number of organic fluorophores are among the fastest basic chemical reactions known so far and their rates can be
Breaking the Kasha Rule for More Efficient Photochemistry.
The anti-Kasha effects, which provide an important element that sheds light on the mechanisms of excited-state transformations, open new possibilities of selective control of these reactions for a variety of practical applications.
Selective laser spectroscopy of 1-phenylnaphthylamine in phospholipid membranes.
It is suggested that the release of potential energy of intermolecular interactions which occurs in the process of relaxation, results in accelerated (light-induced) rotation of the probe inside the membrane.