Influence of structural and solvation factors on the spectral-fluorescent properties of alkyl-substituted BODIPYs in solutions.
The spectral-fluorescent properties of alkyl-substituted BODIPYs 1-5 in organic solvents were investigated. The alkyl-substituted BODIPYs 1-5 exhibit intense chromophoric properties (lgε=4.60-5.00). Relative fluorescence quantum yield of studied compounds reaches 66-100% and weakly dependent on the structural and solvation effects. Introduction of methyl, propyl, amyl and heptyl substituents in the 2,6-positions of the pyrroles the results in a significant red shift (22-29nm) in the electronic absorption and fluorescence spectra.
G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences (ISC RAS), 1 Akademicheskaya st., 153045 Ivanovo, Russian Federation. Electronic address: nad@isc-ras.ru.
Natalia A
NA
Bumagina
G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences (ISC RAS), 1 Akademicheskaya st., 153045 Ivanovo, Russian Federation. Electronic address: eva@isc-ras.ru.
Elena V
EV
Antina
G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences (ISC RAS), 1 Akademicheskaya st., 153045 Ivanovo, Russian Federation. Electronic address: mbb@isc-ras.ru.
Mikhail B
MB
Berezin
Inorganic Chemistry Department, Ivanovo State University of Chemistry and Technology (ISUCT), 7 Sheremetevskij prosp., 153000 Ivanovo, Russian Federation. Electronic address: gasel.93@mail.ru.
Alexander A
AA
Kalyagin
BODIPY; Dipyrromethene; Electronic absorption spectra; Fluorescence quantum yield; Solvatofluorochromic parameters