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| Content Provider | Springer Nature Link |
|---|---|
| Author | Aaron, Jean Jacques Párkányi, Cyril Adenier, Alain Potin, Caroline Zajíčková, Zuzana Martínez, Omar R. Svoboda, Jiří Pihera, Pavel Váchal, Petr |
| Copyright Year | 2011 |
| Abstract | The electronic absorption, fluorescence excitation and emission spectra, and fluorescence quantum yields of novel fused thienobenzofurans, including thieno[3,2-b][1]benzofuran (1), [1]benzothieno[3,2-b]furan (2), and [1]benzothieno[3,2-b][1]benzofuran (3), were recorded in fourteen solvents of different polarities at room temperature. Compound 2 was not fluorescent. Experimental ground-state dipole moments of compounds 1–3 were measured in benzene at 298 K and compared with the corresponding theoretical dipole moment values. The solvent effects on the electronic absorption and fluorescence spectra of these thienobenzofurans were quantitatively investigated by means of solvatochromic correlations based on the Kawski-Chamma-Viallet and McRae equations. A weak negative solvatochromic behavior was found for these compounds, showing that their dipole moments are slightly lower in the excited singlet-state than in the ground-state. Kamlet-Abboud-Taft multiparameter relationships were also established for electronic absorption and fluorescence wavenumbers, and fluorescence quantum yields in most solvents, demonstrating the occurrence of specific solute-solvent interactions. |
| Starting Page | 2133 |
| Ending Page | 2141 |
| Page Count | 9 |
| File Format | |
| ISSN | 10530509 |
| Journal | Journal of Fluorescence |
| Volume Number | 21 |
| Issue Number | 6 |
| e-ISSN | 15734994 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2011-07-13 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Fused thienobenzofurans Electronic absorption spectra Fluorescence Dipole moments Solvatochromic correlations Kamlet-Abboud-Taft relationships Quantum-chemical calculations Biomedicine general Biochemistry Biophysics and Biological Physics Analytical Chemistry Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Sociology and Political Science Spectroscopy Law Biochemistry Clinical Biochemistry Clinical Psychology |
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