Multifrequency EPR and Redox Reactivity Investigations of a Bis(μ-thiolato)-dicopper(II,II) Complex.
{From a new tripodal ligand [N2SS'H], (o-HSC6H4CH2)(o-tBuC6H4CH2)NCHC6H5, with mixed N,S(thioether), and S(thiolate) donor set, [Cu2(N2SS')2](ClO4)2.Et2O (1) was prepd. and characterized. X-ray crystallog. anal. of 1 demonstrates that the two five-coordinated Cu atoms are bridged by two thiolates leading to a nearly planar Cu2S2 core with a Cu1···Cu1* distance of 3.418(8) {\AA} and a large bridging angle Cu1S1Cu1* of 94.92°. X-band (10 GHz), Q-band (34 GHz), and F-Band (115 GHz) EPR spectra of 1 are consistent with a weakly coupled dicopper(II,II) center attributed to an S = 1 state. Simulations for the three frequencies were obtained with a unique set of electronic parameters. The mean values of the spin Hamiltonian parameters for 1 are |D| = 0.210(3) cm-1
Références
- Titre
- Multifrequency EPR and Redox Reactivity Investigations of a Bis(μ-thiolato)-dicopper(II,II) Complex.
- Type de publication
- Article de revue
- Année de publication
- 2006
- Auteurs
- Rammal, Wassim, Belle Catherine, Béguin Claude, Duboc Carole, Philouze Christian, Pierre Jean-Louis, Le Pape Laurent, Bertaina Sylvain, Saint-Aman Eric, and Torelli Stéphane
- Revue
- Inorg. Chem.
- Volume
- 45
- Pagination
- 10355–10362
- ISSN
- 0020-1669
- Mots-clés
- copper mercaptophenylmethylamine pyridylmethyl deriv dinuclear complex prepn structure crystal structure copper mercaptophenylmethylamine pyridylmethyl deriv cytochrome c oxidase model copper mercaptophenylmethylamine pyridylmethyl deriv dinuclear electrochem redn copper mercaptophenylmethylamine pyridylmethyl deriv dinuclear complex ESR copper mercaptophenylmethylamine pyridylmethyl deriv dinuclear complex nitrous oxide reductase model copper mercaptophenylmethylamine pyridylmethyl deriv dinuclear
Soumis le 12 avril 2018