Photochemistry of 5-aminoquinoline in protic and aprotic solvents

Photophysical properties of 5-aminoquinoline (5AQ) have been investigated in various non-polar and polar (protic and aprotic) solvents using steady state and time resolved fluorescence. In aprotic solvents, the spectral maxima depend on the polarity. However, in protic solvents both the fluorescence intensity as well decay time show decrease depending on the hydrogen bonding ability of the solvent. The results suggest that photochemistry 5AQ is quite sensitive towards the polarity as well as protic character of the solvent.

Photophysical/photochemical properties of 5-aminoquinoline (5AQ) have been investigated. In aprotic solvents, the spectra depend on the polarity. However, in protic solvents both the fluorescence intensity as well decay times show decrease depending on the hydrogen bonding ability of the solvent. The results suggest that photochemistry of 5AQ is quite sensitive towards the polarity as well as protic character of the solvent.Figure optionsDownload as PowerPoint slideHighlights
► Photophysical properties of 5-aminoquinoline (5AQ) have been investigated.
► Spectral and decay data depend on polarity and H-bonding ability of the solvent.
► Photochemistry of 5AQ is quite sensitive towards the polarity of the solvent.
► Protic nature of the solvent also influences it photochemistry considerably.