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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F05%3A00024789%21RIV06-AV0-61388955
rdf:type
n13:Vysledek skos:Concept
dcterms:description
V práci jsou shrnuty výsledky elektrochemického a spektroelektrochemického výzkumu pro dirutheniové komplexy s butadienediylovým můstkem [{Ru(PPh3)2(CO)Cl}2(.mu.-C4H4)] (1), [{Ru(PEt3)3(CO)Cl}2(.mu.-C4H4)] (2), a [{Ru(PPh3)2 (CO)Cl(NC5H4COOEt-4)}2(.mu.-C4H4)] (3). Fyzikální vlastnosti těchto komplexů byly interpretovány pomocí kvantově chemických DFT výpočtů. Všechny spektroskopické charakteristiky jako jsou posuny v infračervených spektrech, isotropické g hodnoty a anisotropie g-tensoru v elektronové paramagnetické resonanci byly dobře reprodukovány pomocí výpočtů. We report electrochemical and spectroelectrochemical investigations on the butadienediyl-bridged diruthenium complexes [{Ru(PPh3)2(CO)Cl}2(.mu.-C4H4)] (1), [{Ru(PEt3)3(CO)Cl}2(.mu.-C4H4)] (2), and [{Ru(PPh3)2 (CO)Cl(NC5H4COOEt-4)}2(.mu.-C4H4)] (3). All these complexes are oxidized in two consecutive one-electron steps separated by 315 to 680 mV, depending on the coligands. The first oxidation is a chemically and electrochemically reversible process whereas the second varies from nearly reversible to irreversible at room temperature. We have generated and investigated the mixed-valence monocations and observed CO band shifts of ca 25 cm-1 and the appearance of new bands in the visible regime at ca 720 to 800 and 430 to 450 nm. We report electrochemical and spectroelectrochemical investigations on the butadienediyl-bridged diruthenium complexes [{Ru(PPh3)2(CO)Cl}2(.mu.-C4H4)] (1), [{Ru(PEt3)3(CO)Cl}2(.mu.-C4H4)] (2), and [{Ru(PPh3)2 (CO)Cl(NC5H4COOEt-4)}2(.mu.-C4H4)] (3). All these complexes are oxidized in two consecutive one-electron steps separated by 315 to 680 mV, depending on the coligands. The first oxidation is a chemically and electrochemically reversible process whereas the second varies from nearly reversible to irreversible at room temperature. We have generated and investigated the mixed-valence monocations and observed CO band shifts of ca 25 cm-1 and the appearance of new bands in the visible regime at ca 720 to 800 and 430 to 450 nm.
dcterms:title
Electron delocalization in mixed-valence butadienediyl-bridged diruthenium complexes Electron delocalization in mixed-valence butadienediyl-bridged diruthenium complexes Elektronová delokalizace v dirutheniových komplexech s butadienediylovým můstkem se smíšenou valencí
skos:prefLabel
Elektronová delokalizace v dirutheniových komplexech s butadienediylovým můstkem se smíšenou valencí Electron delocalization in mixed-valence butadienediyl-bridged diruthenium complexes Electron delocalization in mixed-valence butadienediyl-bridged diruthenium complexes
skos:notation
RIV/61388955:_____/05:00024789!RIV06-AV0-61388955
n5:strany
738;749
n5:aktivita
n16:P n16:Z
n5:aktivity
P(1ET400400413), Z(AV0Z40400503)
n5:cisloPeriodika
11
n5:dodaniDat
n10:2006
n5:domaciTvurceVysledku
n12:3953084
n5:druhVysledku
n17:J
n5:duvernostUdaju
n18:S
n5:entitaPredkladatele
n8:predkladatel
n5:idSjednocenehoVysledku
519978
n5:idVysledku
RIV/61388955:_____/05:00024789
n5:jazykVysledku
n11:eng
n5:klicovaSlova
electrochemistry; spectroelectrochemistry; ruthenium; DFT calculations
n5:klicoveSlovo
n15:electrochemistry n15:DFT%20calculations n15:ruthenium n15:spectroelectrochemistry
n5:kodStatuVydavatele
DE - Spolková republika Německo
n5:kontrolniKodProRIV
[B966FFD20104]
n5:nazevZdroje
Journal of Solid State Electrochemistry
n5:obor
n7:CG
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
4
n5:projekt
n14:1ET400400413
n5:rokUplatneniVysledku
n10:2005
n5:svazekPeriodika
9
n5:tvurceVysledku
Sarkar, B. Maurer, J. Záliš, Stanislav Winter, R. F.
n5:zamer
n9:AV0Z40400503
s:issn
1432-8488
s:numberOfPages
12