Pawlowski, Valeri and Strasser, Andreas and Vogler, Arnd (2003) Synthesis, electronic spectra and solvent-induced reversible dissociation of diphosphine(hexafluoroacetylacetonato)copper(I) complexes. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 58 (10). pp. 950-954. ISSN 0932-0776
Full text not available from this repository.Abstract
The complexes Cu-I(P-P)(hfac) with P-P = 1,2-bis(diphenylphosphino)ethane (diphos), 1,3-bis(diphenylphosphino)propane (prophos), 2,2'-bis(dif)henylphosphino)-1,1'-binaphthyl (binap) and hfac = hexafluoroacetylacetonate were synthesized and spectroscopically characterized. In the solid state or in solutions of non-polar solvents these compounds are yellow owing to a long-wavelength (hfac(-) --> P-P) ligand-to-ligand charge transfer absorption. In coordinating solvents such as CH3CN the complexes undergo a reversible dissociation according to the equation: Cu(P-P)(hfac) + nCH(3)CN reversible arrow [Cu(P-P)(CH3CN)(n)](+)hfac(-). While the complexes are not luminescent the ion pairs [Cu(P-P)(CH3CN),](+)hfac(-) are emissive at 77 K. The cations and the anions show separate emissions as indicated by the excitation spectra.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BETA-DIKETONATE COMPLEXES; LIGAND CHARGE-TRANSFER; COPPER(I) COMPOUNDS; ALKYNE COMPLEXES; CHEMISTRY; LUMINESCENCE; (1,5-CYCLOOCTADIENE)COPPER(I); NORBORNADIENE; electronic spectra; luminescence; copper complexes; beta-diketonate complexes |
| 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: | 29 Jul 2021 09:37 |
| Last Modified: | 29 Jul 2021 09:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38590 |
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