Characterization of a Mixed-Valence Ru(II)/Ru(III) Ion-Pair Complex. Unexpected High-Frequency Electron Paramagnetic Resonance Evidence for Ru(III)–Ru(III) Dimer Coupling | Zendy

Olga Impert | Zendy; Anna Kozakiewicz | Zendy; Grzegorz Wrzeszcz | Zendy; Anna Katafias | Zendy; Alina Bieńko | Zendy; Rudi van Eldik | Zendy; Andrew Ozarowski | Zendy

Open Access

Characterization of a Mixed-Valence Ru(II)/Ru(III) Ion-Pair Complex. Unexpected High-Frequency Electron Paramagnetic Resonance Evidence for Ru(III)–Ru(III) Dimer Coupling

Author(s) -

Olga Impert,

Anna Kozakiewicz,

Grzegorz Wrzeszcz,

Anna Katafias,

Alina Bieńko,

Rudi van Eldik,

Andrew Ozarowski

Publication year - 2020

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.0c01068

Subject(s) - chemistry , electron paramagnetic resonance , valence (chemistry) , ion , dimer , aqueous solution , ruthenium , crystallography , resonance (particle physics) , paramagnetism , inorganic chemistry , nuclear magnetic resonance , atomic physics , condensed matter physics , catalysis , organic chemistry , physics

In this contribution, we report the synthesis and full characterization of the first mixed-valence Ru(II)/Ru(III) ion-pair complex, [Ru II (bipy) 2 (pic)] + [ cis -Ru III Cl 2 (pic) 2 ] - , in the solid state and in aqueous solution, where bipy = 2,2'-bipyridine and pic - = picolinate. In addition, unexpected high-frequency electron paramagnetic resonance evidence for interactions between two neighboring Ru(III) ions, resulting in a triplet state, S = 1, was found.

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