A Low‐Spin Ruthenium(IV)–Oxo Complex: Does the Spin State Have an Impact on the Reactivity?†
This work was supported by Grants‐in‐Aids (Nos. 20108010 (S.F.) and 21350035 (T.K.)) from the Japan Society of Promotion of Science (JSPS), MEXT, Japan (No. 20050029 to T.O. on Priority Area 477), and KOSEF/MEST through WCU project (R31‐2008‐000‐10010‐0).
Abstract
Spin doesn't matter: A ruthenium(II)–aqua complex bearing a pentadentate pyridylamine with a carboxylate group as a ligand affords a seven‐coordinate low‐spin (S=0) ruthenium(IV)–oxo complex (see structure) by oxidation through proton‐coupled electron transfer. Comparison of the reactivity of the low‐spin and an intermediate‐spin (S=1) RuIV–oxo complexes revealed that the spin state does not affect the reactivity of catalytic oxidation of organic compounds.
