Non-innocent behaviour of ancillary and bridging ligands in homovalent and mixed-valent ruthenium complexes [A2Ru(.mu.L)RuA2]n, A = 2,4-pentanedionato or 2-phenylazopyridine, L2- = 2,5?bis(2-oxidophenyl)pyrazine
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00084292" target="_blank" >RIV/61388955:_____/07:00084292 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Non-innocent behaviour of ancillary and bridging ligands in homovalent and mixed-valent ruthenium complexes [A2Ru(.mu.L)RuA2]n, A = 2,4-pentanedionato or 2-phenylazopyridine, L2- = 2,5?bis(2-oxidophenyl)pyrazine
Original language description
Structurally characterised 2,5-bis(2-hydroxyphenyl)pyrazine (H2L) can be partially or fully deprotonated to form the complexes [(acac)2Ru(.mu.-L)Ru(acac)2] [1], acac- = acetylacetonato = 2,4-pentanedionato, [(pap)2Ru(.mu.-L)Ru(pap)2](ClO4)2 [2](ClO4)2, pap = 2-phenylazopyridine, or [(pap)2Ru(.mu.L)Ru](ClO4), [3](ClO4). Several reversible oxidation and reduction processes were observed in each case and were analysed with respect to oxidation state alternatives through EPR and uv-vis-nir spectroelectrochemistry. In relation to previously reported compounds with 2,2/-bipyridine as ancillary ligands the complex redox system [1]n is distinguished by a preference for metal-based electron transfer whereas the systems [2]n and [3]n favour an invariant RuII state.
Czech name
Noninocentní chování pobočných a můstkových ligandů v homovalentních komplexů a komplexů se smíšenou valencí [A2Ru(.mu.-L)RuA2]n, A = 2,4-pentanedionato nebo 2-fenylazopyridin, L2- = 2,5-bis(2-oxidophenyl)pyrazin
Czech description
Strukturně charakterizovaný 2,5-bis(2-hydroxyphenyl)pyrazine (H2L) může být částečně nebo úplně deprotonován a tvořit komplexy [(acac)2Ru(.mu.-L)Ru(acac)2] [1], acac- = acetylacetonato = 2,4-pentanedionato, [(pap)2Ru(.mu.-L)Ru(pap)2](ClO4)2 [2](ClO4)2, pap = 2-phenylazopyridine, nebo [(pap)2Ru(.mu.L)Ru](ClO4), [3](ClO4). Bylo pozorováno několik reversibilních oxidačních a redukčních procesů, jež byly analyzovány z hlediska alternativ oxidačních stavů s použitím EPR a uv-vis-nir spektroelektrochemie. V analogii s dříve popsanými sloučeninami s pobočným ligandem 2,2/-bipyridinem, redox systém [1]n se vyznačuje preferencí pro elektronový přenos na kovu, zatímco systémy [2]n a [3]n upřednostňují neměnný RuII stav.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Dalton Transactions
ISSN
1477-9226
e-ISSN
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Volume of the periodical
20
Issue of the periodical within the volume
-
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
2411-2418
UT code for WoS article
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EID of the result in the Scopus database
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