A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), molecular formula is C41H35ClP2Ru. In a Article，once mentioned of 32993-05-8, Quality Control of: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)
A dinuclear Ru(II)-Ru(III) complex, [Ru(acac)2(mu2- tropC2)RuCp(dppe)] (2a, acac = acetylacetonato, Cp = cyclopentadienyl, dppe = 1,2-bis(diphenylphosphino)ethane, HtropC2H = 5-acetylenyltropolone), has been newly synthesized and fully characterized. 2a is composed of two hetero units, [RuIICp(dppe)] and [Ru III(acac)2(trop)], and it showed a broad absorption in the NIR region, indicating the electronic communication between the two hetero units. 2a quantitatively converted to the vinylidene form [2aH](TsO) by the addition of p-toluenesulfonic acid monohydrate (TsOH·H2O) to the chloroform solution of 2a. The weak NIR absorption exhibited by 2a disappeared in [2aH](TsO). [2aH](TsO) re-converted to the acetylide 2a after the addition of triethylamine to the acetonitrile solution of [2aH](TsO). 1H NMR and UV-vis-NIR spectroscopy indicated the mutual interconversion and on/off behavior of the electronic communication between the two hetero units. Moreover, structural interconversion also proceeded in the solid state. 2a swiftly converted to [2aH](TsO) after grinding with solid TsOH·H2O for 5 min. The conversion yield estimated from IR measurements was 70%. [2aH](TsO) re-converted to 2a after re-grinding with AcONa with a conversion yield of 84%. These results indicate the usability of 2a as a molecular switch triggered by protonation/deprotonation both in solution and solid state.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Quality Control of: Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II), If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 32993-05-8, in my other articles.
Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI