Solvation dynamics of Nile Red in a room temperature ionic liquid using streak camera

2004 ◽  
Vol 6 (12) ◽  
pp. 3106 ◽  
Author(s):  
Satyen Saha ◽  
Prasun K. Mandal ◽  
Anunay Samanta
2003 ◽  
Vol 107 (24) ◽  
pp. 5926-5932 ◽  
Author(s):  
J. A. Ingram ◽  
R. S. Moog ◽  
N. Ito ◽  
R. Biswas ◽  
M. Maroncelli

2013 ◽  
Vol 85 (7) ◽  
pp. 1451-1463 ◽  
Author(s):  
Kotni Santhosh ◽  
G. Krishnamurthy Grandhi ◽  
Snigdha Ghosh ◽  
Anunay Samanta

Unlike most other electron donor–acceptor (EDA) molecules, aminochalcones exhibit unusual solvent polarity-dependent fluorescence behavior. The photophysical behavior of two aminochalcones, namely, 4-aminochalcone (AC) and 4-dimethylaminochalcone (DMAC), has been studied in a viscous room-temperature ionic liquid (IL), 1-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6], by steady-state and time-resolved fluorescence techniques. The observation of a single emission band in viscous IL, which is similar to the one observed in less viscous polar conventional solvents, suggests no twisting is necessary for the formation of the charge-transfer state from which the emission of aminochalcones originates. The fluorescence decay profiles, solvation dynamics, and excitation-wavelength-dependent emission behavior of AC are found to be quite different from those of DMAC in the IL. The observed difference is attributed to specific H-bonding interaction between AC and [bmim][PF6].


2001 ◽  
Vol 3 (5) ◽  
pp. 210-215 ◽  
Author(s):  
Kristin A. Fletcher ◽  
Isaiah A. Storey ◽  
Ashley E. Hendricks ◽  
Shubha Pandey ◽  
Siddharth Pandey

Sign in / Sign up

Export Citation Format

Share Document