Fluorescence properties and dipole moments of novel fused thienobenzofurans. solvent and structural effects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43892764" target="_blank" >RIV/60461373:22310/11:43892764 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10895-011-0914-3" target="_blank" >http://dx.doi.org/10.1007/s10895-011-0914-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10895-011-0914-3" target="_blank" >10.1007/s10895-011-0914-3</a>

Result language
angličtina
Original language name
Fluorescence properties and dipole moments of novel fused thienobenzofurans. solvent and structural effects
Original language description
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 theoreticaldipole 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. Aweak 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 est
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CC - Organic chemistry
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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