The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Heterogeneous rate constants of the electron-transfer of iron- and ruthenium-bipyridine complexes in imidazolium-based ionic liquids》. Authors are Patah, Aep; Bachle, Josua; Grampp, Gunter.The article about the compound:Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate)cas:60804-74-2,SMILESS:F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F.C1(C2=NC=CC=C2)=NC=CC=C1.C3(C4=NC=CC=C4)=NC=CC=C3.C5(C6=NC=CC=C6)=NC=CC=C5.[Ru+2]).Recommanded Product: 60804-74-2. Through the article, more information about this compound (cas:60804-74-2) is conveyed.
The heterogeneous rate constants (ks) for the oxidation of iron- and ruthenium-bipyridine complexes, [Fe(bpy)3]2+/3+ and [Ru(bpy)3]2+/3+ were determined using Nicholson’s method in imidazolium-based ionic liquids with five different types of cation/anion over a range of temperature from 298-318 K. The heterogeneous rate constants of these redox reactions range from 10-4 to 10-3 cm s-1, depending on the dynamic viscosity and type of cation/anion of the ILs. Marcus-Hush theory was used to explain the activation energies, Ea. Similar activation energies are found for the Fe-bipyridine and Ru-bipyridine complexes indicating that inner-sphere reorganization energy has only a small influence. For the calculation of the solvent-dependent outer sphere reorganization energy a dipole-free expression was used, adopted to the different dielec. properties of ionic liquids compared to organic solvents. i-Ru drops were compensated using the corresponding exptl. uncompensated Ru-values obtained from temperature dependent Bode-plots.
Although many compounds look similar to this compound(60804-74-2)Recommanded Product: 60804-74-2, numerous studies have shown that this compound(SMILES:F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F.C1(C2=NC=CC=C2)=NC=CC=C1.C3(C4=NC=CC=C4)=NC=CC=C3.C5(C6=NC=CC=C6)=NC=CC=C5.[Ru+2]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI