Electronic structure and intramolecular photophysical processes of cations of symmetric indopolycarbocyanine dyes

Autor:	Alexander A. Ishchenko, O. K. Bazyl, V. Ya. Artyukhov, V. A. Svetlichnyĭ
Rok vydání:	2008
Předmět:	Materials science Reaction rate constant Absorption spectroscopy Intramolecular force Radiative transfer Physical chemistry Electronic structure Singlet state Fluorescence Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials
Zdroj:	Optics and Spectroscopy. 105:339-347
ISSN:	1562-6911 0030-400X
DOI:	10.1134/s0030400x08090038
Popis:	The electronic structure, spectra, and rate constants of radiative and nonradiative processes of cations of the vinylogous series of symmetric indopolycarbocyanine dyes are calculated by the semiempirical method of partial neglect of differential overlap. The S0 → Sn absorption spectra are interpreted. The dependences of the efficiency of the deactivation of the fluorescent state on the length of the polymethine chain of cations are analyzed. The quantum yields of the fluorescence from the first and second singlet states are calculated. The calculation results agree satisfactorily with experimental data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8936f330ec9f1277e72648a0e898f855 https://doi.org/10.1134/s0030400x08090038 Zobrazit plný text záznamu Plný text ve formátu PDF