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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bonnet, Marie-laure Ruiz-molina, Daniel Robert, Vincent Evangelio, Emi Cabañas, Miquel Sutter, Jean-pascal Dei, Andrea Nakano, Motohiro |
| Description | Author Affiliation: Evangelio E ( Centro de Investigación en Nanociencia y Nanotecnología (CIN2, CSIC-ICN), Edifici CM7, Campus UAB 08193, Cerdanyola del Vallès, Catalonia, Spain.) |
| Abstract | The different thermally induced intermolecular electron transfer (IET) processes that can take place in the series of complexes $[M(Cat-N-BQ)(Cat-N-SQ)]/[M(Cat-N-BQ)_{2}],$ for which M=Co (2), Fe (3) and Ni(4), and Cat-N-BQ and Cat-N-SQ denote the mononegative $(Cat-N-BQ^{−})$ or dinegative $(Cat-N-SQ^{2−})$ radical forms of the tridentate Schiff-base ligand 3,5-di-tert-butyl-1,2-quinone-1-(2-hydroxy-3,5-di-tert-butylphenyl)imine, have been studied by variable-temperature UV/Vis and NMR spectroscopies. Depending on the metal ion, rather different behaviors are observed. Complex 2 has been found to be one of the few examples so far reported to exhibit the coexistence of two thermally induced electron transfer processes, ligand-to-metal $(IET^{LM})$ and ligand-to-ligand $(IET^{LL}).$ $IET^{LL}$ was only found to take place in complex 3, and no IET was observed for complex 4. Such experimental studies have been combined with ab initio wavefunction-based CASSCF/CASPT2 calculations. Such a strategy allows one to solicit selectively the speculated orbitals and to access the ground states and excited-spin states, as well as charge-transfer states giving additional information on the different IET processes. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 22 |
| Volume Number | 16 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2010-06-11 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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