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• W2334657229 endingPage "1869" @default.
• W2334657229 startingPage "1859" @default.
• W2334657229 abstract "The electron-transfer and hydride-transfer properties of an isolated manganese(V)−oxo complex, (TBP8Cz)Mn(V)(O) (1) (TBP8Cz = octa-tert-butylphenylcorrolazinato) were determined by spectroscopic and kinetic methods. The manganese(V)−oxo complex 1 reacts rapidly with a series of ferrocene derivatives ([Fe(C5H4Me)2], [Fe(C5HMe4)2], and ([Fe(C5Me5)2] = Fc*) to give the direct formation of [(TBP8Cz)Mn(III)(OH)]− ([2-OH]−), a two-electron-reduced product. The stoichiometry of these electron-transfer reactions was found to be (Fc derivative)/1 = 2:1 by spectral titration. The rate constants of electron transfer from ferrocene derivatives to 1 at room temperature in benzonitrile were obtained, and the successful application of Marcus theory allowed for the determination of the reorganization energies (λ) of electron transfer. The λ values of electron transfer from the ferrocene derivatives to 1 are lower than those reported for a manganese(IV)−oxo porphyrin. The presumed one-electron-reduced intermediate, a Mn(IV) complex, was not observed during the reduction of 1. However, a Mn(IV) complex was successfully generated via one-electron oxidation of the Mn(III) precursor complex 2 to give [(TBP8Cz)Mn(IV)]+ (3). Complex 3 exhibits a characteristic absorption band at λ(max) = 722 nm and an EPR spectrum at 15 K with g(max)′ = 4.68, g(mid)′ = 3.28, and g(min)′ = 1.94, with well-resolved 55Mn hyperfine coupling, indicative of a d3 Mn(IV)S = 3/2 ground state. Although electron transfer from [Fe(C5H4Me)2] to 1 is endergonic (uphill), two-electron reduction of 1 is made possible in the presence of proton donors (e.g., CH3CO2H, CF3CH2OH, and CH3OH). In the case of CH3CO2H, saturation behavior for the rate constants of electron transfer (k(et)) versus acid concentration was observed, providing insight into the critical involvement of H+ in the mechanism of electron transfer. Complex 1 was also shown to be competent to oxidize a series of dihydronicotinamide adenine dinucleotide (NADH) analogues via formal hydride transfer to produce the corresponding NAD+ analogues and [2-OH]−. The logarithms of the observed second-order rate constants of hydride transfer (k(H)) from NADH analogues to 1 are linearly correlated with those of hydride transfer from the same series of NADH analogues to p-chloranil." @default.
• W2334657229 created "2016-06-24" @default.
• W2334657229 creator A5010888790 @default.
• W2334657229 creator A5035006133 @default.
• W2334657229 creator A5066193981 @default.
• W2334657229 creator A5083632294 @default.
• W2334657229 date "2011-01-10" @default.
• W2334657229 modified "2023-10-17" @default.
• W2334657229 title "Electron- and Hydride-Transfer Reactivity of an Isolable Manganese(V)−Oxo Complex" @default.
• W2334657229 cites W1554230411 @default.
• W2334657229 cites W1963512517 @default.
• W2334657229 cites W1964594138 @default.
• W2334657229 cites W1968048104 @default.
• W2334657229 cites W1968155650 @default.
• W2334657229 cites W1971438281 @default.
• W2334657229 cites W1972040015 @default.
• W2334657229 cites W1973721002 @default.
• W2334657229 cites W1974475845 @default.
• W2334657229 cites W1979140627 @default.
• W2334657229 cites W1979931746 @default.
• W2334657229 cites W1980986116 @default.
• W2334657229 cites W1981882427 @default.
• W2334657229 cites W1982123154 @default.
• W2334657229 cites W1983346165 @default.
• W2334657229 cites W1984087622 @default.
• W2334657229 cites W1984728369 @default.
• W2334657229 cites W1985076114 @default.
• W2334657229 cites W1986872126 @default.
• W2334657229 cites W1988450367 @default.
• W2334657229 cites W1992769355 @default.
• W2334657229 cites W1993809008 @default.
• W2334657229 cites W1995144376 @default.
• W2334657229 cites W1997343083 @default.
• W2334657229 cites W1997632364 @default.
• W2334657229 cites W2000968981 @default.
• W2334657229 cites W2001127597 @default.
• W2334657229 cites W2004673847 @default.
• W2334657229 cites W2006366087 @default.
• W2334657229 cites W2009223660 @default.
• W2334657229 cites W2015661213 @default.
• W2334657229 cites W2018536426 @default.
• W2334657229 cites W2018935119 @default.
• W2334657229 cites W2019443024 @default.
• W2334657229 cites W2024140372 @default.
• W2334657229 cites W2025283388 @default.
• W2334657229 cites W2027530360 @default.
• W2334657229 cites W2028010767 @default.
• W2334657229 cites W2029246784 @default.
• W2334657229 cites W2033030973 @default.
• W2334657229 cites W2034265417 @default.
• W2334657229 cites W2035834248 @default.
• W2334657229 cites W2044619467 @default.
• W2334657229 cites W2047920186 @default.
• W2334657229 cites W2051052157 @default.
• W2334657229 cites W2059770799 @default.
• W2334657229 cites W2062666384 @default.
• W2334657229 cites W2066099283 @default.
• W2334657229 cites W2070590630 @default.
• W2334657229 cites W2071560481 @default.
• W2334657229 cites W2072152584 @default.
• W2334657229 cites W2073356400 @default.
• W2334657229 cites W2075820341 @default.
• W2334657229 cites W2076455204 @default.
• W2334657229 cites W2077621515 @default.
• W2334657229 cites W2082345487 @default.
• W2334657229 cites W2084052917 @default.
• W2334657229 cites W2085831526 @default.
• W2334657229 cites W2090129581 @default.
• W2334657229 cites W2091237955 @default.
• W2334657229 cites W2092500291 @default.
• W2334657229 cites W2094289644 @default.
• W2334657229 cites W2097532911 @default.
• W2334657229 cites W2100032379 @default.
• W2334657229 cites W2119359676 @default.
• W2334657229 cites W2121404626 @default.
• W2334657229 cites W2124129640 @default.
• W2334657229 cites W2133416961 @default.
• W2334657229 cites W2136419697 @default.
• W2334657229 cites W2137213267 @default.
• W2334657229 cites W2137962193 @default.
• W2334657229 cites W2140158011 @default.
• W2334657229 cites W2146702232 @default.
• W2334657229 cites W2147398137 @default.
• W2334657229 cites W2147899939 @default.
• W2334657229 cites W2152087962 @default.
• W2334657229 cites W2155604981 @default.
• W2334657229 cites W2161008178 @default.
• W2334657229 cites W2167204985 @default.
• W2334657229 cites W2170346184 @default.
• W2334657229 cites W2314350270 @default.
• W2334657229 cites W2324245517 @default.
• W2334657229 cites W2332675070 @default.
• W2334657229 cites W2345484860 @default.
• W2334657229 cites W2950253440 @default.
• W2334657229 cites W2951083669 @default.
• W2334657229 cites W2952313294 @default.
• W2334657229 cites W4205244936 @default.
• W2334657229 cites W4211091797 @default.

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