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- Title
Metal(IV) Complexes [M(L<sub>N,O,S</sub>)<sub>2</sub>]<sup> n</sup> (M = Ru, Os) of a Redox-Active o-Amidophenolate Ligand (L<sub>N,O,S</sub>)<sup>2-</sup> with Coordinating Thioether Appendix.
- Authors
Hübner, Ralph; Sarkar, Biprajit; Fiedler, Jan; Záliš, Stanislav; Kaim, Wolfgang
- Abstract
Complexes [M( LN,O,S)2] [M = Ru, Os; ( LN,O,S)2- = 4,6-di- tert-butyl(2-methylthiophenylamido)- o-phenolate] were obtained and structurally characterized as metal(IV) complexes with mer-configured tridentate ligands. Two reversible oxidations and one (Os) or two (Ru) reversible reductions were investigated by EPR and UV/Vis/NIR spectroelectrochemistry. The first reduction leads to EPR-silent MIII species, whereas the oxidation produces iminosemiquinone complexes with ligand-centered spin and small-metal participation at the singly occupied MO. Absorptions in the visible and near-IR region are assigned with the help of time-dependent (TD)-DFT calculations.
- Subjects
LIGANDS (Chemistry); OSMIUM; RUTHENIUM; ELECTRONIC structure; OXIDATION
- Publication
European Journal of Inorganic Chemistry, 2012, Vol 2012, Issue 22, p3569
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201200225