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• W2079682074 endingPage "2831" @default.
• W2079682074 startingPage "2821" @default.
• W2079682074 abstract "A set of four [MnII(L7py2R)]2+ complexes, supported by the tetradentate 1,4-bis(2-pyridylmethyl)-1,4-diazepane ligand and derivatives with pyridine substituents in the 5 (R = Br) and 6 positions (R = Me and MeO), are reported. X-ray crystal structures of these complexes all show the L7py2R ligands bound to give a trans complex. Treatment of these MnII precursors with either H2O2/Et3N or KO2 in MeCN at −40 °C results in the formation of peroxomanganese complexes [MnIII(O2)(L7py2R)]+ differing only in the identity of the pyridine ring substituent. The electronic structures of two of these complexes, [MnIII(O2)(L7py2H)]+ and [MnIII(O2)(L7py2Me)]+, were examined in detail using electronic absorption, low-temperature magnetic circular dichroism (MCD) and variable-temperature variable-field (VTVH) MCD spectroscopies to determine ground-state zero-field splitting (ZFS) parameters and electronic transition energies, intensities, and polarizations. DFT and TD-DFT computations were used to validate the structures of [MnIII(O2)(L7py2H)]+ and [MnIII(O2)(L7py2Me)]+, further corroborating their assignment as peroxomanganese(III) species. While these complexes exhibit similar ZFS parameters, their low-temperature MCD spectra reveal significant shifts in electronic transition energies that are correlated to differences in Mn−O2 interactions among these complexes. Taken together, these results indicate that, while the [MnIII(O2)(L7py2H)]+ complex exhibits symmetric Mn−Operoxo bond lengths, consistent with a side-on bound peroxo ligand, the peroxo ligand of the [MnIII(O2)(L7py2Me)]+ complex is bound in a more end-on fashion, with asymmetric Mn−Operoxo distances. This difference in binding mode is rationalized in terms of the greater electron-donating abilities of the methyl-appended pyridines and suggests a simple way to modulate MnIII−O2 bonding through ligand perturbations." @default.
• W2079682074 created "2016-06-24" @default.
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• W2079682074 date "2010-02-05" @default.
• W2079682074 modified "2023-10-03" @default.
• W2079682074 title "A Series of Peroxomanganese(III) Complexes Supported by Tetradentate Aminopyridyl Ligands: Detailed Spectroscopic and Computational Studies" @default.
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• W2079682074 cites W1965505987 @default.
• W2079682074 cites W1967700647 @default.
• W2079682074 cites W1969623807 @default.
• W2079682074 cites W1970283070 @default.
• W2079682074 cites W1973336827 @default.
• W2079682074 cites W1973737664 @default.
• W2079682074 cites W1978303991 @default.
• W2079682074 cites W1979965123 @default.
• W2079682074 cites W1982356449 @default.
• W2079682074 cites W1983684033 @default.
• W2079682074 cites W1992434932 @default.
• W2079682074 cites W1997343083 @default.
• W2079682074 cites W1997894206 @default.
• W2079682074 cites W2000952117 @default.
• W2079682074 cites W2002690658 @default.
• W2079682074 cites W2010393497 @default.
• W2079682074 cites W2010642611 @default.
• W2079682074 cites W2012866556 @default.
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• W2079682074 cites W2019346344 @default.
• W2079682074 cites W2021970219 @default.
• W2079682074 cites W2023271753 @default.
• W2079682074 cites W2027599498 @default.
• W2079682074 cites W2029366738 @default.
• W2079682074 cites W2030687437 @default.
• W2079682074 cites W2031927281 @default.
• W2079682074 cites W2032130244 @default.
• W2079682074 cites W2040891489 @default.
• W2079682074 cites W2041557628 @default.
• W2079682074 cites W2041781232 @default.
• W2079682074 cites W2044952194 @default.
• W2079682074 cites W2045349837 @default.
• W2079682074 cites W2047192776 @default.
• W2079682074 cites W2047900492 @default.
• W2079682074 cites W2053417509 @default.
• W2079682074 cites W2056656736 @default.
• W2079682074 cites W2058210956 @default.
• W2079682074 cites W2061659670 @default.
• W2079682074 cites W2063663126 @default.
• W2079682074 cites W2064532485 @default.
• W2079682074 cites W2068228867 @default.
• W2079682074 cites W2069197437 @default.
• W2079682074 cites W2072152584 @default.
• W2079682074 cites W2075963189 @default.
• W2079682074 cites W2078005644 @default.
• W2079682074 cites W2078146328 @default.
• W2079682074 cites W2080487798 @default.
• W2079682074 cites W2082847413 @default.
• W2079682074 cites W2084946151 @default.
• W2079682074 cites W2087693812 @default.
• W2079682074 cites W2087771419 @default.
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• W2079682074 cites W2159063344 @default.
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• W2079682074 doi "https://doi.org/10.1021/ja910235g" @default.
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