Ruthenium compounds polypyridine complexes

A time resolution of approximately 10 ps is possible with the CFMIO method, although at such short times the mixing and chemical reaction take place simultaneously and the analysis becomes more complicated. Nonetheless, the method was used successfully in a study of the reactions of iron(III) and ruthenium(III) polypyridine complexes with several transition metal cyano compounds [3], but each experiment required approximately 300 mL of solution. The measured rate constants for electron transfer exceeded 3 x 10 M s . ... 

Polypyridyl ruthenium complexes are known for their interesting photophysical and redox properties as well as their countless appHcations. Polypyridine ruthenium compounds display weU-defined chemistry, photochemistry, and photophysical properties they have found use as artificial light-harvesting systems for technological purposes and as... 

The most favorable compound for non-natural amino acid requires the following 1) stability to air, moisture, acid, base and heat, 2) complex inert to ligand exchange reaction, 3) electrochemical stability and 4) synthetic facility. Consequently, we selected ruthenium-polypyridine compounds and ferrocene derivatives shown in Fig. 3.33(b). Palladium compounds were prepared for spectroscopic comparisons and investigation. 

Haga and coworkers examined the electrochemical response from a tetranuclear ruthenium polypyridine compound with a dendritic morphology, and using cyclic voltammetry, they were able to observe the central metal of the complex being oxidized at a potential about 150 mV less positive than that for the oxidation... 

More recently, systems based on polypyridine coordination compounds of ruthenium(II) [46-49], rhodium(I) [50a] and iridium(I) [50] have been shown to efficiently catalyse the thermal WGSR. An important effect of the substituent ortho to the nitrogen atom of the ligand has been demonstrated in the case of Ir(I) leading to one of the most efficient catalysts known today [50b]. [Ru(bpy)2(CO)Cl] has also been studied and all of the possible intermediates within the catalytic cycle (hydrocarbonyl complex, metal hydride, aquo species) have been isolated and characterized [48]. 

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