About: A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Korelace mezi redoxním chováním Fischerových karbenů a jejich strukturou a reaktivitou (cs) A set of about 30 Fischer-type aminocarbene complexes of Cr, W and Fe was synthesized, of general formulae [(CO)nM = C(NMe2)(Ph-p-R)], n = 5 for M = Cr or W , n = 4 for M = Fe; [(CO)nM=C(NMe2)(R')]; [(CO)n-1M =C{N(CH2CH=CH2)(CH2CH =CH2)} (Ph-p-R)] , and [(CO)5Cr=C(NMe2)(Ph-o-Me-p-R)]. Values of oxidation potential Eox, reduction potential Ered and their difference ΔE = Eox - Ered were correlated with 1) nature of the central metal, 2) carbene carbon substitution (using the Linear Free Energy Relationship (LFER) approach), 3) coordination sphere geometry 4) bonding abilities of ligands. It was found that the reduction takes place on the carbene carbon atom and Ered depends strongly on the ligand substitution, being influenced by both sterical and inductive effects of the substituents. On the other hand, oxidation is practically independent on the ligand substitution; it is determined mainly by nature of the central metal atom and number of carbonyl groups. The experimental results are com A set of about 30 Fischer-type aminocarbene complexes of Cr, W and Fe was synthesized, of general formulae [(CO)nM = C(NMe2)(Ph-p-R)], n = 5 for M = Cr or W , n = 4 for M = Fe; [(CO)nM=C(NMe2)(R')]; [(CO)n-1M =C{N(CH2CH=CH2)(CH2CH =CH2)} (Ph-p-R)] , and [(CO)5Cr=C(NMe2)(Ph-o-Me-p-R)]. Values of oxidation potential Eox, reduction potential Ered and their difference ΔE = Eox - Ered were correlated with 1) nature of the central metal, 2) carbene carbon substitution (using the Linear Free Energy Relationship (LFER) approach), 3) coordination sphere geometry 4) bonding abilities of ligands. It was found that the reduction takes place on the carbene carbon atom and Ered depends strongly on the ligand substitution, being influenced by both sterical and inductive effects of the substituents. On the other hand, oxidation is practically independent on the ligand substitution; it is determined mainly by nature of the central metal atom and number of carbonyl groups. The experimental results are com (en)
Title	A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity (en) Korelace mezi redoxním chováním Fischerových karbenů a jejich strukturou a reaktivitou (cs)
skos:prefLabel	A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity A Correlation between Redox Behaviour of Fischer-type Carbene Complexes and their Structure and Reactivity (en) Korelace mezi redoxním chováním Fischerových karbenů a jejich strukturou a reaktivitou (cs)
skos:notation	RIV/60461373:22310/07:00018279!RIV08-GA0-22310___
http://linked.open.../vavai/riv/strany	45-60
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA203/04/0487)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Hoskovcová, Irena Dvořák, Dalimil
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	407860
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/07:00018279
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Fischer-type aminocarbene complexes; electrochemistry; Fe; Cr; W; substituent effect (en)
http://linked.open.../riv/klicoveSlovo	Fe W electrochemistry Cr substituent effect Fischer-type aminocarbene complexes
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[D87801E65F88]
http://linked.open...i/riv/nazevZdroje	Achievements in Coordination, Bioinorganic and Applied Inorganic Chemistry
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (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	2007
http://linked.open...iv/tvurceVysledku	Záliš, S. Dvořák, Dalimil Hoskovcová, Irena Ludvík, J.
issn	1335-308X
number of pages	15 (xsd:int)
http://localhost/t...ganizacniJednotka	22310

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