Time-domain spectroscopy of the excited state of 2-naphthol: Charge-transfer complexes with triethylamine in polar solvents

1990 ◽  
Vol 46 (1) ◽  
pp. 25-31 ◽  
Author(s):  
P.B. Bisht ◽  
H.B. Tripathi ◽  
D.D. Pant
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Time Domain ◽  
Charge Transfer Complexes ◽  
Polar Solvents ◽  
Time Domain Spectroscopy

scholarly journals Charge-transfer complexes of 2,3-dichloro-5,6-dicyano-1,4-benzoquinone with amino molecules in polar solvents

2015 ◽  
Vol 149 ◽  
pp. 75-82 ◽  
Author(s):  
Silvia Berto ◽  
Enrico Chiavazza ◽  
Valentina Ribotta ◽  
Pier Giuseppe Daniele ◽  
Claudia Barolo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Polar Solvents

Spectroscopic Studies of Dimethylamino Derivatives of Fluorene

2000 ◽  
Vol 55 (11-12) ◽  
pp. 902-908 ◽  
Author(s):  
J. Heldt ◽  
J. R. Heldt ◽  
T. Redzimski ◽  
H. Diehl ◽  
P. Schultz
Keyword(s):  
Dipole Moment ◽  
Excited State ◽  
Charge Transfer ◽  
Fluorescence Spectra ◽  
Intramolecular Charge Transfer ◽  
Stokes Shift ◽  
Spectroscopic Studies ◽  
Polar Solvents ◽  
Derivatives Of ◽  
Transfer State

Abstract 2-dimethylamino-9-fluorenol and 2-dimethylamino-9(4'dimethylamino)phenyl-9-fiuorenol in polar solvents in the excited state undergo conformation changes in which two fluorescent isomers are created. The isomers (in the local excited (LE) and charge transfer (CT) configuration) possess separate fluorescence bands, one appearing from the S1 (LE) state and the second from the intramolecular charge transfer state S1 (CT) of the neutral, aromatic molecule. Both bands show a solvatochromic effect. Using the method of the solvent induced Stokes shift of the absorption and fluorescence spectra the permanent dipole moment of the excited state of fluorene and its two derivatives have been determined. The dipole moment of the ground state and the Onsager cavity radius of the studied molecules were calculated with the Auestion Model 1 (AM1) program.

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