In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 2926-30-9, name is Sodium trifluoromethanesulfonate, introducing its new discovery. SDS of cas: 2926-30-9
The reactions of [Fe2(OH)(R3CCOO)2(Me3tacn)2]+ (R = F (1-F), Me (1-Me), Ph (1-Ph)) with dioxygen initially afford a mu-oxo bridged mixed valent diiron(II)(III) complex [Fe2O(R3CCOO)2(Me3tacn)2]+ (R = Me (2- Me) and Ph (2-Ph)) and subsequently the diiron(III) complexes 3-Me and 3-Ph. The reactions in acetonitrile are fast for 1-F, slower for 1-Me, and slow enough for 1-Ph so that crystals of 2-Ph as the triflate (2-Ph-OTf) and BPh4 salts could be isolated and their structures determined. The oxidant N- methylmorpholine N-oxide (MMNO), is cleaner in that the byproduct, H2O, does not further oxidize 2 as does the byproduct, H2O2, from the reaction with O2. The crystal structures indicate that 2 has an oxo bridge with the Fe···Fe distances in 2-Ph-OTf (3.123(1) A) and 2-Ph-BPh4 (3.155(1) A) similar to those of 3. The magnetic susceptibility data are fit for 1-Ph to two equivalent high-spin Fe(II) sites with H = 2JS1·S2, D = 2.823, g = 2.00, and J = -12.1 cm-1, for 2-Ph to an S = 1/2 ground state with a high- spin Fe(III) site with D = 1.46, g = 2.00, and a high-spin Fe(II) site with D = 13.93, E/D = 0.285, g = 2.069, and J = -144 cm-1, and for 2 Me to an S = 1/2 ground state with a high-spin Fe(III) site with D = 2.39, g = 2.00, and a high-spin Fe(II) site with D = -11.42, g = 2.041 and J = -119 cm-1. The EPR spectrum is consistent with the S = 1/2 ground state (g = 1.97, 1.93, 1.90 at 10 K) and is observed even at 85 K. The Mossbauer of 2-Ph exhibits a poorly resolved doublet suggesting a Class II mixed valent species (Fe(II) and Fe(III) sites with delta = 1.09, 0.6, DeltaE(Q) = 2.45, 2.35, and Gamma = 0.55, 0.75 mm s-1, respectively). Electrospray mass spectra in MeCN with 18O labeled 1- -Ph and 1-Me indicated that they reacted by an outer-sphere process with 16O2 or MMN16O as none of the oxidant is incorporated into 2.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 2926-30-9 is helpful to your research. SDS of cas: 2926-30-9
Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI