| Autor: |
O’Connor, Donald B., Scott, Gary W., Tran, Kim, Coulter, Daniel R., Miskowski, Vincent M., Stiegman, Albert E., Wnek, Gary E. |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 9/15/1992, Vol. 97 Issue 6, p4018, 11p |
| Abstrakt: |
Absorption and emission spectra of 4-amino-4’-nitrodiphenyl sulfide in polar and nonpolar solvents were used to characterize and assign the low-energy excited states of the molecule. Fluorescence-excitation anisotropy spectra, fluorescence and phosphorescence lifetimes, and fluorescence quantum yields were also used to characterize the photophysics of these states. The lowest-energy, fluorescent singlet state was determined to be an intramolecular charge transfer (ICT) state involving transfer of a full electron charge from the amino to the nitro group yielding a dipole moment of ∼50 D. A low-energy, intense absorption band is assigned as a transition to a different ICT state involving a partial electron charge transfer from sulfur to the nitro group. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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