FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2008327786> ?p ?o ?g. }

• W2008327786 endingPage "6824" @default.
• W2008327786 startingPage "6804" @default.
• W2008327786 abstract "The ligand L2− (H2L = N,N′-dimethyl-N,N′-bis(3,5-di-t-butyl-2-hydroxybenzyl)-1,2-diaminoethane) has been employed for the synthesis of two mononuclear FeIII complexes, namely, [LFe(η2-NO3)] and [LFeCl]. L2− is comprised of four strongly electron-donating groups (two tert-amines and two phenolates) that increase the electron density at the coordinated ferric ions. This property should facilitate oxidation of the complexes, that is, stabilization of the oxidized species. The molecular structures in the solid state have been established by X-ray diffraction studies. [LFeCl] is five-coordinate in a square-pyramidal coordination environment with the ligand adopting a trans-conformation, while [LFe(η2-NO3)] is six-coordinate in a distorted octahedral environment with the ligand in a β-cis conformation. The electronic structures have been studied using magnetization, EPR, Mössbauer (with and without applied field), UV−vis−NIR, and X-ray absorption spectroscopies, which demonstrate highly anisotropic covalency from the strong σ- and π-donating phenolates. This analysis is supported by DFT calculations on [LFeCl]. The variations of the well-understood spectroscopic data in the solid state to the spectroscopic data in solution have been used to obtain insight in the molecular structure of the two complexes in solution. While the molecular structures of the solid states are retained in solutions of nonpolar aprotic solvents, there is, however, one common molecular structure in all protic polar solvents. The analysis of the LMCT transitions and the rhombicity E/D clearly establish that both compounds exhibit a β-cis conformation in these protic polar solvents. These two open coordination sites, cis to each other, allow access for two potential ligands in close proximity. Electrochemical analysis establishes two reversible oxidation waves for [LFeCl] at +0.55 V and +0.93 V vs Fc+/Fc and one reversible oxidation wave at +0.59 V with an irreversible oxidation at +1.07 V vs Fc+/Fc for [LFe(η2-NO3)]. The one- and the two-electron oxidations of [LFeCl] by chronoamperometry have been followed spectroscopically. The increase of a strong band centered at 420 nm indicates the formulation of [LFeCl]+ as a FeIII monophenoxyl radical complex and of [LFeCl]2+ as a FeIII bisphenoxyl radical complex. These studies imply that the ligand L2− is capable of providing a flexible coordination geometry with two binding sites for substrates and the allocation of two oxidation equivalents on the ligand." @default.
• W2008327786 created "2016-06-24" @default.
• W2008327786 creator A5014503882 @default.
• W2008327786 creator A5018454806 @default.
• W2008327786 creator A5034905005 @default.
• W2008327786 creator A5053491539 @default.
• W2008327786 creator A5067506502 @default.
• W2008327786 creator A5068622337 @default.
• W2008327786 creator A5078676088 @default.
• W2008327786 creator A5090355454 @default.
• W2008327786 date "2008-06-27" @default.
• W2008327786 modified "2023-09-24" @default.
• W2008327786 title "Molecular and Electronic Structures of Mononuclear Iron Complexes Using Strongly Electron-Donating Ligands and their Oxidized Forms" @default.
• W2008327786 cites W1511407547 @default.
• W2008327786 cites W1577843043 @default.
• W2008327786 cites W1622339598 @default.
• W2008327786 cites W1965968946 @default.
• W2008327786 cites W1966743780 @default.
• W2008327786 cites W1967314547 @default.
• W2008327786 cites W1967700647 @default.
• W2008327786 cites W1968623016 @default.
• W2008327786 cites W1968688891 @default.
• W2008327786 cites W1969024947 @default.
• W2008327786 cites W1969555321 @default.
• W2008327786 cites W1970522028 @default.
• W2008327786 cites W1971899270 @default.
• W2008327786 cites W1974161446 @default.
• W2008327786 cites W1975262546 @default.
• W2008327786 cites W1977196046 @default.
• W2008327786 cites W1978956836 @default.
• W2008327786 cites W1981641123 @default.
• W2008327786 cites W1981704948 @default.
• W2008327786 cites W1982018391 @default.
• W2008327786 cites W1982466984 @default.
• W2008327786 cites W1983153696 @default.
• W2008327786 cites W1986260849 @default.
• W2008327786 cites W1986454612 @default.
• W2008327786 cites W1987575621 @default.
• W2008327786 cites W1992413871 @default.
• W2008327786 cites W1992478722 @default.
• W2008327786 cites W1993551830 @default.
• W2008327786 cites W1994613702 @default.
• W2008327786 cites W1995267065 @default.
• W2008327786 cites W1995891356 @default.
• W2008327786 cites W1996036063 @default.
• W2008327786 cites W1998584925 @default.
• W2008327786 cites W2004264939 @default.
• W2008327786 cites W2009638987 @default.
• W2008327786 cites W2011169834 @default.
• W2008327786 cites W2011607516 @default.
• W2008327786 cites W2012090737 @default.
• W2008327786 cites W2012968335 @default.
• W2008327786 cites W2015813201 @default.
• W2008327786 cites W2015966141 @default.
• W2008327786 cites W2018375843 @default.
• W2008327786 cites W2018565696 @default.
• W2008327786 cites W2019693825 @default.
• W2008327786 cites W2020293130 @default.
• W2008327786 cites W2020399106 @default.
• W2008327786 cites W2021750069 @default.
• W2008327786 cites W2025258396 @default.
• W2008327786 cites W2027999474 @default.
• W2008327786 cites W2028462347 @default.
• W2008327786 cites W2030687437 @default.
• W2008327786 cites W2043194258 @default.
• W2008327786 cites W2044955788 @default.
• W2008327786 cites W2045562184 @default.
• W2008327786 cites W2045572748 @default.
• W2008327786 cites W2045574007 @default.
• W2008327786 cites W2046414723 @default.
• W2008327786 cites W2046594998 @default.
• W2008327786 cites W2048016354 @default.
• W2008327786 cites W2051209941 @default.
• W2008327786 cites W2052895859 @default.
• W2008327786 cites W2054109569 @default.
• W2008327786 cites W2055563809 @default.
• W2008327786 cites W2057331738 @default.
• W2008327786 cites W2058210956 @default.
• W2008327786 cites W2067291828 @default.
• W2008327786 cites W2068147716 @default.
• W2008327786 cites W2068254002 @default.
• W2008327786 cites W2068268035 @default.
• W2008327786 cites W2068788602 @default.
• W2008327786 cites W2068992469 @default.
• W2008327786 cites W2072780797 @default.
• W2008327786 cites W2072975767 @default.
• W2008327786 cites W2074994491 @default.
• W2008327786 cites W2077059894 @default.
• W2008327786 cites W2077621515 @default.
• W2008327786 cites W2077749836 @default.
• W2008327786 cites W2078171437 @default.
• W2008327786 cites W2079093854 @default.
• W2008327786 cites W2079658152 @default.
• W2008327786 cites W2084606965 @default.
• W2008327786 cites W2085265246 @default.
• W2008327786 cites W2085831526 @default.
• W2008327786 cites W2086957099 @default.
• W2008327786 cites W2088512861 @default.

• next