Author:
Tchaikovskaya O.N.,Dmitrieva N.G.,Bocharnikova E.N.,Chaidonova V.S.,Avramov P.V.
Abstract
The migration of excitation energy of a number of psoralen compounds has been studied. For this, the methods of induced absorption spectroscopy, stationary electron spectroscopy, fluorescence and phosphorescence, as well as quantum chemistry were used. A comparative photostability of psoralen was achieved by exposure to a XeCl excilamp irradiation (emission wavelength λem = 308 nm) with parameters Δλ = 5–10 nm, Wpeak = 18 mW/cm2, p = 8.1 J/cm3, f = 200 kHz, pulse duration 1 μs. It was found that the singlet-triplet transition played a major role in the migration of excitation energy into triplet states. Among all tested compounds, substances with an OCH3-group in the structure have the strongest effect on the spectral-luminescent characteristics.
Reference48 articles.
1. Exciplexes in Highly Excited Triplet States;Alfimov;High Energ. Chem.,2014
2. Quantum-Chemical Theory of Electronic Excitation Energy Transfer in Molecular Systems;Artyukhov;Russ. J. Phys. Chem. A.,2001
3. Processes of Internal Conversion in Polyacenes;Artyukhov;Opt. Spectrosc.,1997
4. Spectroscopic Parametrization of the Method of PNDO;Artyukhov;Soviet Phys. J.,1986
5. A Combined Theoretical and Experimental Study on Molecular Photonics;Artyukhov;Russ. Phys. J.,2008
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献