Indole’s solvatochromism revisited
- 15 January 1986
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 84 (2) , 597-604
- https://doi.org/10.1063/1.450606
Abstract
The absorption and emission solvatochromism of five indole derivatives was studied by referring the shifts to the corresponding vapor‐phase wave numbers. The emission results clearly demonstrate, in three cases, the change in the nature of the emitting state when the solvent polarity is increased. In absorption, a large red shift in the 1La band is observed in all polar solvents, and this cannot be explained by classical solvent–solute interaction forces. The temperature dependence of the emission shift in a viscous solvent (glycerol) confirms that most of the emission shift is due to solvent relaxation. The 1La–1Lb level inversion model applied to ground‐state polar solvent–solute complex, can account for most of the solvatochromism features observed.Keywords
This publication has 38 references indexed in Scilit:
- Dipole moments in excited state. Solvatochromic equations based on different local-field modelsCollection of Czechoslovak Chemical Communications, 1984
- Laser spectroscopy and photodynamics of indole and indole-van der Waals molecules in a supersonic beamThe Journal of Physical Chemistry, 1983
- Picosecond laser photolysis of aqueous indole and tryptophanThe Journal of Physical Chemistry, 1982
- Dipole moments in excited state. Statistical investigation of methods employing solvatochromismCollection of Czechoslovak Chemical Communications, 1978
- Shift of emission band upon the excitation at the long wavelength absorption edge. III. Temperature dependence of the shift and correlation with the time dependent spectral shiftThe Journal of Chemical Physics, 1976
- INFLUENCE OF THE ENVIRONMENT ON THE EXCITATION WAVELENGTH DEPENDENCE OF THE FLUORESCENCE QUANTUM YIELD OF INDOLEPhotochemistry and Photobiology, 1975
- THE DIPOLE MOMENT IN THE LOWEST SINGLET π*→π STATE OF INDOLE DETERMINED BY THE OPTICAL STARK EFFECT*Photochemistry and Photobiology, 1974
- Effects of hydrogen bonding and solvents upon the tryptophanyl 1La absorption band. Studies using 2,3-dimethylindoleBiochemistry, 1972
- Solvent effects on aromatic chromophores and their relation to ultraviolet difference spectra of proteinsThe Journal of Physical Chemistry, 1968
- The Dipole Moments and Polarizabilities in the Excited States of Naphthalene from Spectral Solvent ShiftsBulletin of the Chemical Society of Japan, 1966