Altering the emission behavior with the turn of a thiophene ring: the photophysics of condensed ring systems of alternating benzenes and thiophenes.
Six aromatic compounds with embedded thiophenes differing in the number of rings (2-5) and thiophene orientation along the long axis of the molecule (syn, anti) were investigated. Photophysical properties, steady-state absorption, fluorescence, phosphorescence, lifetimes, quantum yields, and a comprehensive time-resolved spectroscopic analysis (femtosecond and nanosecond transient absorption spectroscopy) have been studied as a function of molecular structure.
Wex
Brigitte
B
Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403, USA.
Kaafarani
Bilal R
BR
Danilov
Evgeny O
EO
Neckers
Douglas C
DC