Valence-State Analysis through Spectroelectrochemistry in a Series of Quinonoid-Bridged Diruthenium Complexes [(acac)2Ru(.mu.-L)Ru(acac)2]n (n= +2, +1, 0, -1, -2)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00321030" target="_blank" >RIV/61388955:_____/08:00321030 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Valence-State Analysis through Spectroelectrochemistry in a Series of Quinonoid-Bridged Diruthenium Complexes [(acac)(2)Ru(mu-L)Ru(acac)(2)](n) (n =+2,+1, 0,-1,-2)

Popis výsledku v původním jazyce

The quinonoid ligand-bridged diruthenium compounds [(acac)2Ru(.mu.-L)Ru(acac)2 (acac- = acetylacetonato = 2,4-pentanedionato; L2 =2,5-dioxido-1,4-benzoquinone, 1; 3,6-dichloro-2,5-dioxido-1,4-benzoquinone, 2; 5,8-dioxido-1,4-naphthoquinone, 3; 2,3-dichloro-5,8-dioxido-1,4-naphthoquinone, 4; 1,5-dioxido-9,10-anthraquinone, 5; and 1,5-diimido-9,10-anthraquinone, 6) were prepared and characterized analytically. The simultaneous presence of highly redox-active quinonoid-bridging ligands and of two rutheniumcenters capable of adopting the oxidation states +2, +3, and +4 creates a large variety of possible oxidation state combinations. Accordingly, the complexes 1?6 exhibit two reversible one-electron oxidation steps and at least two reversible reduction processes. While the first reduction steps are assigned to largely ligand-centered processes, the oxidation appears to involve metal?ligand delocalized molecular orbitals with variable degree of mixing.

Název v anglickém jazyce

Valence-State Analysis through Spectroelectrochemistry in a Series of Quinonoid-Bridged Diruthenium Complexes [(acac)(2)Ru(mu-L)Ru(acac)(2)](n) (n =+2,+1, 0,-1,-2)

Popis výsledku anglicky

The quinonoid ligand-bridged diruthenium compounds [(acac)2Ru(.mu.-L)Ru(acac)2 (acac- = acetylacetonato = 2,4-pentanedionato; L2 =2,5-dioxido-1,4-benzoquinone, 1; 3,6-dichloro-2,5-dioxido-1,4-benzoquinone, 2; 5,8-dioxido-1,4-naphthoquinone, 3; 2,3-dichloro-5,8-dioxido-1,4-naphthoquinone, 4; 1,5-dioxido-9,10-anthraquinone, 5; and 1,5-diimido-9,10-anthraquinone, 6) were prepared and characterized analytically. The simultaneous presence of highly redox-active quinonoid-bridging ligands and of two rutheniumcenters capable of adopting the oxidation states +2, +3, and +4 creates a large variety of possible oxidation state combinations. Accordingly, the complexes 1?6 exhibit two reversible one-electron oxidation steps and at least two reversible reduction processes. While the first reduction steps are assigned to largely ligand-centered processes, the oxidation appears to involve metal?ligand delocalized molecular orbitals with variable degree of mixing.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemistry - A European Journal

ISSN

0947-6539

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

34

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

000261555200036

EID výsledku v databázi Scopus

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