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| Content Provider | Springer Nature Link |
|---|---|
| Author | Boily, Jean François Seward, Terry M. |
| Copyright Year | 2005 |
| Abstract | The dissociation constants of fumaric acid were extracted from UV-vis spectra in the 10–90 $^{∘}$C range. These values were used to extract thermodynamic parameters that showed the temperature effects on the dissociations reactions to be dominantly driven by the solvent. The molar absorption coefficients for the fumaric acid, the bifumarate and fumarate species, can be accurately reproduced with the two-term Gauss–Lorentz equation. Deconvolution of these bands showed strong π–π$^{∗}$ transitions for all species and weaker charge-transfer-to-solvent transitions for the charged species. TD-DFT calculations were used to identify the most important molecular orbitals involved in the vertical excitations of the fumaric acid species. The electron population and their states of delocalization were also estimated with topological analyses of the electron density and of the Becke–Edgecombe Electron Localization Function. |
| Starting Page | 1167 |
| Ending Page | 1190 |
| Page Count | 24 |
| File Format | |
| ISSN | 00959782 |
| Journal | Journal of Solution Chemistry |
| Volume Number | 34 |
| Issue Number | 10 |
| e-ISSN | 15728927 |
| Language | English |
| Publisher | Kluwer Academic Publishers-Plenum Publishers |
| Publisher Date | 2005-01-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Fumaric acid uv-vis spectrophotometry factor analysis TD-DFT AIM ELF Physical Chemistry Industrial Chemistry/Chemical Engineering Condensed Matter Inorganic Chemistry Geochemistry Oceanography |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Molecular Biology Biophysics Physical and Theoretical Chemistry |
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