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Analysis of a Diimine-Organonickel Redox Series
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SYSNO ASEP 0536325 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Analysis of a Diimine-Organonickel Redox Series Author(s) Sondermann, Ch. (DE)
Pižl, Martin (UFCH-W) ORCID, RID
Paretzki, A. (DE)
Feil, Ch. (DE)
Ringenberg, M. R. (DE)
Záliš, Stanislav (UFCH-W) RID, ORCID
Kaim, W. (DE)Source Title European Journal of Inorganic Chemistry. - : Wiley - ISSN 1434-1948
Roč. 2020, č. 31 (2020), s. 3010-3015Number of pages 6 s. Language eng - English Country DE - Germany Keywords alpha-diimine ; nickel-complexes ; electronic-structure ; ethylene ; spectroelectrochemistry ; approximation ; reactivity ; mechanism ; oxidation ; catalysts ; Cyclopentadienide ligands ; Electron transfer ; Nickel ; Redox chemistry ; Spectroelectrochemistry Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000553017800001 EID SCOPUS 85088564106 DOI 10.1002/ejic.202000455 Annotation Complex cations [Ni(C5R5)(L)](+), L = 1,4-diphenyl-2,3-dimethyl-1,4-diaza-1,3-butadiene, were compared as structurally characterized BF4-(R = H) and SbF(6)(-)salts (R = Me). These Ni-II(L-0) compounds are reversibly reduced (R = H,Me) or oxidized (R = Me) and their one-electron oxidized and reduced forms studied by EPR and UV/Vis spectroelectrochemistry, supported by DFT calculations. Surprisingly similar EPR features were observed for [Ni(C5Me5)(L)](0)and [Ni(C5Me5)(L)](2+). Whereas the oxidation is largely metal centered to yield a Ni(III)species (R = Me), the reduction reveals energetically close-lying alternatives (redox isomers) Ni-I(L-0) and Ni-II(L center dot-). Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2021 Electronic address http://hdl.handle.net/11104/0314109
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