Knoer, Guenther and Leirer, Markus and Keyes, Tia E. and Vos, Johannes G. and Vogler, Arnd (2000) Non-luminescent 1,2-diiminetricarbonylrhenium(I) chloride complexes - Synthesis, electrochemical and spectroscopic properties of Re(DIAN)(CO)(3)Cl with DIAN = p-substituted bis(arylimino)acenaphthene. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY (4). pp. 749-751. ISSN 1434-1948
Full text not available from this repository. (Request a copy)Abstract
Re(1,2-diimine)(CO)(3)Cl compounds containing the p-substituted bis(arylimino)acenaphthene derivatives DIAN-R with R = H, Me, OMe, Br, and Cl were prepared and characterized. The diimine ligands of this series provide unoccupied orbitals at rather low energies and display a pronounced pi-accepting strength. This feature determines the electrochemical and spectroscopic properties of the Re(DIAN-R)(CO)(3)Cl complexes. All compounds show rhenium(I) to pi* (diimine) metal-to-ligand charge transfer (MLCT) absorptions in the visible spectral region. The maxima of these CT bands systematically shift upon modification of the substituents R and are sensitive to variations of the solvent polarity (negative solvatochromism). Re(DIAN-R)(CO)(3)Cl complexes are nonluminescent both in fluid solution at 298 K and in solvent glass at 77 K.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DIIMINE COMPLEXES; LIGANDS; TRANSITION; SOLVENT; rhenium; diimine ligands; charge transfer; solvatochromism; substituent effects |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Arnd Vogler |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 May 2022 13:06 |
| Last Modified: | 17 May 2022 13:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42619 |
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