Abstract
The reduction of VO(η2-O2)(pyridine-2-carboxylate) by Fe(H2O)6 2+ proceeds via formation of the transient complex (pyridine-2-carboxylate)(O)VV(μ-η2: η2-O2)FeII(H2O)3 2+ that is transformed via intramolecular electron transfer into (pyridine-2-carboxylate)(O)VIV(μ-η2: η2-O2)FeIII(H2O)3 2+. The latter transient reacts with another Fe(H2O)6 2+ to yield 2Fe(H2O)6 3+ + VVO(OH)(pyridine-2-carboxylate)+. These results point out that: (1) VV does not activate the η2 bound peroxide toward the Fenton-like reaction. In this aspect, VV differs from FeIII in (H2O)5Fe–OOH2+ and (2) transients of the type LmMn(μ-η2: η2-O2)M′L″l have to be considered in the reductions of complexes of η2-bound peroxides.
Original language | English |
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Pages (from-to) | 1722-1729 |
Number of pages | 8 |
Journal | Journal of Coordination Chemistry |
Volume | 69 |
Issue number | 11-13 |
DOIs | |
State | Published - 2 Jul 2016 |
Keywords
- DFT
- Fenton reaction
- Kinetics and mechanism
- Vanadium
- μ-η: η-O binuclear complexes