%0 Journal Article %1 Scherer.2021 %A Scherer, Thomas M. %A Hartenbach, Ingo %A Lissner, Falk %A Schwederski, Brigitte %A Huebner, Ralph %A Fiedler, Jan %A Zalis, Stanislav %A Sarkar, Biprajit %A Kaim, Wolfgang %D 2021 %J Zeitschrift fuer Anorganische und Allgemeine Chemie %K imported %N 8 %P 867-875 %R 10.1002/zaac.202000420 %T Analysis of Multiple Redox Sites in Complexes M(C5Me5)(Q)(NO)n, M=Ru or Os, Q=o-Quinones %V 647 %X Neutral complexes MII(C5Me5)(Q2-)(NO+) with M=Ru or Os and the catecholates Q2- with 3,5-di-tert-Bu (dtbc) or 3,4,5,6-tetrachloro substituents (tcc) were identified with the oxidation and charge states indicated. Reversible electron transfer was analyzed spectroelectrochem. (EPR, UV-vis-NIR, IR), supported by DFT calculations Reversible reduction was observed for Ru(C5Me5)(tcc)(NO) to occur on the nitrosyl ligand to yield the NO radical complex RuII(C5Me5)(tcc2-)(NO.)-, whereas the stepwise oxidation yielded o-semiquinone cations, MII(C5Me5)(Q.-)(NO+)+, and dications. The metals remained in the stable low-spin d6 states, RuII and OsII, resp. Redox potentials were found to depend strongly on the donor or acceptor substitution pattern at Qn.

@article{Scherer.2021, abstract = {Neutral complexes [MII(C5Me5)(Q2-)(NO+)] with M=Ru or Os and the catecholates Q2- with 3,5-di-tert-Bu (dtbc) or 3,4,5,6-tetrachloro substituents (tcc) were identified with the oxidation and charge states indicated. Reversible electron transfer was analyzed spectroelectrochem. (EPR, UV-vis-NIR, IR), supported by DFT calculations Reversible reduction was observed for [Ru(C5Me5)(tcc)(NO)] to occur on the nitrosyl ligand to yield the NO radical complex [RuII(C5Me5)(tcc2-)(NO.)]-, whereas the stepwise oxidation yielded o-semiquinone cations, [MII(C5Me5)(Q.-)(NO+)]+, and dications. The metals remained in the stable low-spin d6 states, RuII and OsII, resp. Redox potentials were found to depend strongly on the donor or acceptor substitution pattern at Qn.}, added-at = {2022-06-15T12:05:25.000+0200}, author = {Scherer, Thomas M. and Hartenbach, Ingo and Lissner, Falk and Schwederski, Brigitte and Huebner, Ralph and Fiedler, Jan and Zalis, Stanislav and Sarkar, Biprajit and Kaim, Wolfgang}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2ebf8e92a7b2d1779ba6acd3e71b4140a/huebleriac}, doi = {10.1002/zaac.202000420}, interhash = {3541998d803f47f444d26eabec71afed}, intrahash = {ebf8e92a7b2d1779ba6acd3e71b4140a}, issn = {1521-3749}, journal = {Zeitschrift fuer Anorganische und Allgemeine Chemie}, keywords = {imported}, number = 8, pages = {867-875}, timestamp = {2022-06-15T10:05:25.000+0200}, title = {Analysis of Multiple Redox Sites in Complexes [M(C5Me5)(Q)(NO)]n, M=Ru or Os, Q=o-Quinones}, volume = 647, year = 2021 }