FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1994568954> ?p ?o ?g. }

• W1994568954 endingPage "2743" @default.
• W1994568954 startingPage "2735" @default.
• W1994568954 abstract "In order to model the photoinduced electron-transfer reactions from the manganese cluster to the photoactive P680 chlorophylls in photosystem II, three heterohexanuclear complexes, [Mn2III,IVO2{RuII(bpy)2(Ln)}4]11+ [bpy = 2,2‘-bipyridine, n = 2 (1a), 4 (1b), 6 (1c)], in which one MnIII,IV(μ-O)2 center is covalently linked to four RuII(bpy)3-like moieties by bridged bis(bipyridine) Ln ligands, have been synthesized and characterized. The electrochemical, photophysical, and photochemical properties of these complexes have been investigated in CH3CN. The cyclic voltammograms and rotating-disk electrode curves of the three complexes show the presence of two very close successive reversible oxidation processes corresponding to the Mn2III,IV/Mn2IV,IV and RuII/RuIII redox couples (estimated E1/2 ≈ 0.82 and 0.90 V, respectively). The lower potential of the Mn2III,IV subunit compared to those of the RuII moieties indicates that the RuIII species can act as an efficient oxidant toward the Mn2III,IV core. The two oxidized forms of the complexes [Mn2IV,IVO2{RuII(bpy)2(Ln)}4]12+ (2a−c) and [Mn2IV,IVO2{RuIII(bpy)2(Ln)}4]16+ (3a−c) obtained in good yields (>90% for 2a−c and >85% for 3a−c) by sequential electrolyses are very stable. Photophysical studies show that the 3MLCT excited state of the Ru(bpy)3 centers is moderately quenched by the Mn2III,IV(μ-O)2 core (15−25% depending on the length of the bridging alkyl chain). Nevertheless, this energy transfer can be easily short-circuited in the presence of an external irreversible electron acceptor like the (4-bromophenyl)diazonium cation, by an electron transfer leading, in a stepwise fashion, to the stable one- and five-electron-oxidized species 2a−c and 3a−c, respectively, also in good yields, under continuous irradiation of the solutions. Electro- and photoinduced oxidation experiments have been followed by UV−visible and electron paramagnetic resonance spectroscopy." @default.
• W1994568954 created "2016-06-24" @default.
• W1994568954 creator A5008712662 @default.
• W1994568954 creator A5052617197 @default.
• W1994568954 creator A5058795711 @default.
• W1994568954 creator A5062587397 @default.
• W1994568954 creator A5079709525 @default.
• W1994568954 date "2007-02-13" @default.
• W1994568954 modified "2023-09-27" @default.
• W1994568954 title "Di(μ-oxo) Binuclear Manganese(III,IV) Poly(bipyridyl) Complexes Bearing Four Ruthenium(II) Photoactive Units: Synthesis, Characterization, and Photoinduced Electron-Transfer Properties" @default.
• W1994568954 cites W1603399366 @default.
• W1994568954 cites W1926074116 @default.
• W1994568954 cites W1954333106 @default.
• W1994568954 cites W1966157057 @default.
• W1994568954 cites W1971953356 @default.
• W1994568954 cites W1977496992 @default.
• W1994568954 cites W1978630896 @default.
• W1994568954 cites W1996917852 @default.
• W1994568954 cites W2001050756 @default.
• W1994568954 cites W2011378558 @default.
• W1994568954 cites W2025597427 @default.
• W1994568954 cites W2025659773 @default.
• W1994568954 cites W2025854869 @default.
• W1994568954 cites W2026033505 @default.
• W1994568954 cites W2029653850 @default.
• W1994568954 cites W2030394791 @default.
• W1994568954 cites W2032448612 @default.
• W1994568954 cites W2032922463 @default.
• W1994568954 cites W2042468885 @default.
• W1994568954 cites W2057863409 @default.
• W1994568954 cites W2069561183 @default.
• W1994568954 cites W2083907491 @default.
• W1994568954 cites W2101285312 @default.
• W1994568954 cites W2102555920 @default.
• W1994568954 cites W2135960212 @default.
• W1994568954 cites W2144571511 @default.
• W1994568954 cites W2161831550 @default.
• W1994568954 cites W2162305980 @default.
• W1994568954 cites W2951005768 @default.
• W1994568954 cites W3004794190 @default.
• W1994568954 doi "https://doi.org/10.1021/ic0624726" @default.
• W1994568954 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17295479" @default.
• W1994568954 hasPublicationYear "2007" @default.
• W1994568954 type Work @default.
• W1994568954 sameAs 1994568954 @default.
• W1994568954 citedByCount "25" @default.
• W1994568954 countsByYear W19945689542012 @default.
• W1994568954 countsByYear W19945689542014 @default.
• W1994568954 countsByYear W19945689542016 @default.
• W1994568954 countsByYear W19945689542017 @default.
• W1994568954 countsByYear W19945689542018 @default.
• W1994568954 crossrefType "journal-article" @default.
• W1994568954 hasAuthorship W1994568954A5008712662 @default.
• W1994568954 hasAuthorship W1994568954A5052617197 @default.
• W1994568954 hasAuthorship W1994568954A5058795711 @default.
• W1994568954 hasAuthorship W1994568954A5062587397 @default.
• W1994568954 hasAuthorship W1994568954A5079709525 @default.
• W1994568954 hasConcept C115624301 @default.
• W1994568954 hasConcept C121332964 @default.
• W1994568954 hasConcept C123669783 @default.
• W1994568954 hasConcept C14158195 @default.
• W1994568954 hasConcept C147789679 @default.
• W1994568954 hasConcept C154828652 @default.
• W1994568954 hasConcept C161790260 @default.
• W1994568954 hasConcept C17525397 @default.
• W1994568954 hasConcept C177499756 @default.
• W1994568954 hasConcept C178790620 @default.
• W1994568954 hasConcept C179104552 @default.
• W1994568954 hasConcept C180577832 @default.
• W1994568954 hasConcept C181500209 @default.
• W1994568954 hasConcept C183688256 @default.
• W1994568954 hasConcept C185544564 @default.
• W1994568954 hasConcept C185592680 @default.
• W1994568954 hasConcept C2779336533 @default.
• W1994568954 hasConcept C2781018080 @default.
• W1994568954 hasConcept C32909587 @default.
• W1994568954 hasConcept C52859227 @default.
• W1994568954 hasConcept C528890316 @default.
• W1994568954 hasConcept C55352516 @default.
• W1994568954 hasConcept C55493867 @default.
• W1994568954 hasConcept C555196967 @default.
• W1994568954 hasConcept C55904794 @default.
• W1994568954 hasConcept C75473681 @default.
• W1994568954 hasConcept C8010536 @default.
• W1994568954 hasConcept C80298142 @default.
• W1994568954 hasConceptScore W1994568954C115624301 @default.
• W1994568954 hasConceptScore W1994568954C121332964 @default.
• W1994568954 hasConceptScore W1994568954C123669783 @default.
• W1994568954 hasConceptScore W1994568954C14158195 @default.
• W1994568954 hasConceptScore W1994568954C147789679 @default.
• W1994568954 hasConceptScore W1994568954C154828652 @default.
• W1994568954 hasConceptScore W1994568954C161790260 @default.
• W1994568954 hasConceptScore W1994568954C17525397 @default.
• W1994568954 hasConceptScore W1994568954C177499756 @default.
• W1994568954 hasConceptScore W1994568954C178790620 @default.
• W1994568954 hasConceptScore W1994568954C179104552 @default.
• W1994568954 hasConceptScore W1994568954C180577832 @default.
• W1994568954 hasConceptScore W1994568954C181500209 @default.

• next