A critical comparison of molecular reorientation in the ground and excited electronic states: Cresyl violet in methanol
- 1 January 1985
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 82 (1) , 39-44
- https://doi.org/10.1063/1.448759
Abstract
Picosecond techniques were used to study the rotational diffusion of the ground and first excited electronic states of cresyl violet in methanol. The anisotropy decay was studied at five different wavelengths, three in the ground state and two in the excited state. It is known that the decay of the anisotropy is dependent on both the transition polarization and rotational diffusion constants. Experimentally, a different decay of the anisotropy is observed at each wavelength. The data are consistent with changes in the transition polarization but with the same diffusion constant in all cases. It is concluded that cresyl violet in methanol reorients identically in its ground and excited electronic states.Keywords
This publication has 11 references indexed in Scilit:
- Femtosecond vibrational relaxation of large organic moleculesChemical Physics Letters, 1984
- Picosecond Polarization Spectroscopy of Dye MoleculesBerichte der Bunsengesellschaft für physikalische Chemie, 1982
- Effect of electronic excitation on ultrafast rotational motion of dye moleculesChemical Physics Letters, 1982
- Ultrafast polarization spectroscopy of dye moleculesOptics Communications, 1982
- Multiple modulation for optical pump-probe spectroscopyReview of Scientific Instruments, 1982
- Rotation diffusion of aromatic dianionsThe Journal of Chemical Physics, 1980
- Picosecond saturation spectroscopy of cresyl violet: rotational diffusion by a “sticking” boundary condition in the liquid phaseChemical Physics Letters, 1979
- Direct observation of rotational diffusion by picosecond spectroscopyChemical Physics, 1976
- Studies of chemical and physical processes with picosecond lasersAccounts of Chemical Research, 1975
- Theory of Fluorescence Depolarization by Anisotropic Rotational DiffusionThe Journal of Chemical Physics, 1972