So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Aydogan, Akin; Bangle, Rachel E.; De Kreijger, Simon; Dickenson, John C.; Singleton, Michael L.; Cauet, Emilie; Cadranel, Alejandro; Meyer, Gerald J.; Elias, Benjamin; Sampaio, Renato N.; Troian-Gautier, Ludovic researched the compound: Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate)( cas:60804-74-2 ).Recommanded Product: Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate).They published the article 《Mechanistic investigation of a visible light mediated dehalogenation/cyclization reaction using iron(III), iridium(III) and ruthenium(II) photosensitizers》 about this compound( cas:60804-74-2 ) in Catalysis Science & Technology. Keywords: bromopentenyl malonate preparation iridium ruthenium dehalogenation cyclization mechanism. We’ll tell you more about this compound (cas:60804-74-2).
The mechanism of a visible light-driven dehalogenation/cyclization reaction was investigated using ruthenium(II), iridium(III) and iron(III) photosensitizers by means of steady-state photoluminescence, time-resolved IR spectroscopy, and nanosecond/fs transient absorption spectroscopy. The nature of the photosensitizer was found to influence the product distribution such that the dehalogenated, non-cyclized products were only detected for the iron photosensitizer. Strikingly, with the iron photosensitizer, large catalytic yields required a low dielec. solvent such as dichloromethane, consistent with a previous publication. This low dielec. solvent allowed ultrafast charge-separation to outperform geminate charge recombination and improved cage escape efficiency. Further, the identification of reaction mechanisms unique to the iron, ruthenium, and iridium photosensitizer represents progress towards the long-sought goal of utilizing earth-abundant, first-row transition metals for emerging energy and environmental applications.
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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI