About: M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification

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About: M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Review shrnující rozsáhlé elektrochemické studium několika serií aminokarbenových komplexů Cr, W a Fe s různými (chelátovými a nechelátovými) ligandy a s různou substitucí na karbenovém fenylu. Kromě lokalizace oxidačních a redukčních center a jejich vzájemné interakce byl diskutován vztah elektrochemických dat a energetických rozdílů hladin HOMO a LUMO a vliv substituce na redox vlastnosti, přičemž byly sledovány též změny v elektronové delokalizaci způsobené sterickými vlivy. (cs) Series of chromium, tungsten and iron aminocarbene complexes were prepared and electrochemically investigated. The influence of the type of coordination, of the substituent on the ligand phenyl ring and of the central metal atom on oxidation and reduction potentials was followed electrochemically using the Linear Free Energy Relationship (LFER) approach. The difference between the oxidation and reduction potentials reflects the energy of the HOMO-LUMO gap. The reduction of carbene derivatives strongly depends only on the nature of ligands and their substitution, but not on the nature of the central metal. On the other hand, the oxidation is practically independent of the ligand substitution, being influenced by both the nature of the central metal atom and the number of carbonyl groups (i.e. strong pi-acceptors) present. Series of chromium, tungsten and iron aminocarbene complexes were prepared and electrochemically investigated. The influence of the type of coordination, of the substituent on the ligand phenyl ring and of the central metal atom on oxidation and reduction potentials was followed electrochemically using the Linear Free Energy Relationship (LFER) approach. The difference between the oxidation and reduction potentials reflects the energy of the HOMO-LUMO gap. The reduction of carbene derivatives strongly depends only on the nature of ligands and their substitution, but not on the nature of the central metal. On the other hand, the oxidation is practically independent of the ligand substitution, being influenced by both the nature of the central metal atom and the number of carbonyl groups (i.e. strong pi-acceptors) present. (en)
Title	M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification (en) M(0) – aminokarbenové komplexy chromu, wolframu a železa: Redoxní chování ovlivňované („laděné“) změnami kovu a/nebo ligandu (cs)
skos:prefLabel	M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification M(0) - Aminocarbene complexes (M = Cr, W, Fe): Redox Behavior Tuned by Metal and/or ligand modification (en) M(0) – aminokarbenové komplexy chromu, wolframu a železa: Redoxní chování ovlivňované („laděné“) změnami kovu a/nebo ligandu (cs)
skos:notation	RIV/61388955:_____/06:00085399!RIV08-AV0-61388955
http://linked.open.../vavai/riv/strany	87;95
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/04/0487), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Ludvík, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	487463
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/06:00085399
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	carbene complexes; electrochemistry (en)
http://linked.open.../riv/klicoveSlovo	electrochemistry carbene complexes
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B941EF9689D9]
http://linked.open...i/riv/nazevZdroje	ECS Transactions
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Preparation, reactivity and electrochemistry of new aminocarbene complexes of chromium and iron
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	2
http://linked.open...iv/tvurceVysledku	Dvořák, D. Ludvík, Jiří Hoskovcová, I. Roháčová, J.
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	1938-5862
number of pages	9 (xsd:int)

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