Electron exchange reactions between heteropoly anions: comparison of experimental rate constants with theoretically predicted values

Electron Transfer Behavior of Multi‐Iron Sandwich‐Type Polyoxometalates and Electrocatalytic Reduction Reactions

“…[24Ϫ27,29] Recently, we reported a detailed study of the magnetic properties of the arsenic complex, αββα-Na 12 (Fe4As4). [24] Here we report on the magnetic properties of the remaining complexes, which were all studied in a 0.1 T field.…”

“…Recently we reported the synthesis and electrochemical properties of the sandwich-type POM, αββα-Na 12 (Fe4As4). [24] The accumulation of adjacent edge-sharing Fe III centers in Fe4As4 gives more favorable electrocatalytic properties to the complex than those observed in the monosubstituted complex, α 2 -As 2 (FeOH 2 )W 17 O 61 7Ϫ .…”

Cyclic Voltammetry Study of the Mn‐Substituted Polyoxoanions [MnII4(H2O)2(H4AsW15O56)2]18− and [((MnIIOH2)MnII2PW9O34)2(PW6O26)]17−: Electrodeposition of Manganese Oxides Electrocatalysts for Dioxygen Reduction

“…This demonstrates that the replacement of two As V heteroatoms in the symmetrical Dawson-type Mn 4 As 4 W 30 by two hydrogen atoms in the dissymmetrical Dawson-complex Mn 4 As 2 W 30 has no significant influence on the electron transfer within the molecule. This is understandable since in Dawson structure, the electron transfer starts from the W-centers located on the crown and passes to the W-centers located on the hat [36][37].…”

Electron Transfer Reactions

“…30 Nonetheless, as is demonstrated later in this chapter, it can give excellent results in some cases. [31][32][33][34] Alternatively, one may use the Guggenheim equation (Equation 1.28), which is rigorously correct for solutions of mixed electrolytes. In this equation, the specific interaction parameters are moved from the denominator to a second term, in which b is an adjustable parameter.…”

“…64 31 (From here onward in this example, the superscript "0", which indicates values at the zero ionic strength limit, is omitted to avoid confusion, particularly as the equations and general treatment are valid for any ionic strength.) Gibbs free energies for crossreactions, DG , are most often obtained from electrochemical data.…”