Synthetic Route of 32993-05-8. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 32993-05-8, Name is Chlorocyclopentadienylbis(triphenylphosphine)ruthenium(II)
Syntheses and reactivity of ruthenium sigma-pyridylacetylides
Ruthenium sigma-acetylides containing a dangling pyridine were synthesized from the reactions of CpRu(L)2Cl (L = PPh3, 1/2 (C5H4PPh2)2Fe) with 4-ethynylpyridine, (E)-1-(4-ethynylphenyl)2-(4-pyridyl)ethylene, or 4-(ethynylphenyl)(4-pyridyl)acetylene in the presence of NH4+PF6- followed by deprotonation with a base. The dangling pyridine can be protonated, methylated, or ligated to tungsten carbonyl fragments. The ruthenium donor to the pyridinium acceptor charge-transfer absorption appears at longer wavelength as the conjugation chain becomes longer. The quadratic hyperpolarizabilities of the methylated derivatives were determined using the hyper Rayleigh scattering method. X-ray analysis was employed to examine the structure of the dinuclear complex Ru(C?CC5H4N{W(CO)4(PPh 3)})(eta2-dppf)(eta5-C5H 5) (dppf = 1,1?-bis(diphenylphosphino)ferrocene).
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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI