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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F05%3A00021174%21RIV06-AV0-61388955
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Byly připraveny a elektrochemicky charakterizovány dvě serie (aryl)aminokarbenových komplexů chromu substituovaných na ligandovém fenylovém kruhu : pentakarbonyl[(N,N-dimethylamino)(fenyl)karben]chromu (Ia - e) a chelatovaný tetrakarbonyl[(.eta.2-N-allyl-N-allylamino)(fenyl)karben]chromu (IIa,c,d,e) . Pro srovnání byly přiřazeny další dva komplexy: wolframový analog látky IIc (III) a chromový chelát IV nesoucí namísto fenylu methylový substituent. Intramolekulární interakce p-substituentů na ligandovém fenylovém kruhu s redukčním, resp. oxidačním centrem v molekule komplexu (které byly sledovány elektrochemicky za použití LFER[1]) umožnily lokalizovat příslušné přenosy elektronů. Byl přitom diskutován vliv typu koordinace, vliv substituentů na fenylu a vliv centrálního atomu na oxidační a redukční potenciál. Two series of chromium(0)-(aryl)aminocarbene complexes substituted on the ligand phenyl ring were prepared and electrochemically investigated: pentacarbonyl((N,N-dimetylamino)(phenyl)carbene(chromium(0) (Ia-e) and chelated tetracarbonyl((.eta.2-N-allyl-N-allylamino)(phenyl)carbene(chromium(0) (IIa,c-e). For comparison, a tungsten analogue of IIc (III) and a chromium chelate bearing a methyl substituent instead of the phenyl group IV were taken into the study. The intramolecular interactions of p-substituents of the ligand phenyl ring with the reduction and oxidation centres of the molecule of complex (followed electrochemically using LFER enabled to localize the corresponding electron transfer. The influence of the type of coordination, the substituent on the ligand phenyl ring and the central metal atom on oxidation and reduction potentials is discussed. Two series of chromium(0)-(aryl)aminocarbene complexes substituted on the ligand phenyl ring were prepared and electrochemically investigated: pentacarbonyl((N,N-dimetylamino)(phenyl)carbene(chromium(0) (Ia-e) and chelated tetracarbonyl((.eta.2-N-allyl-N-allylamino)(phenyl)carbene(chromium(0) (IIa,c-e). For comparison, a tungsten analogue of IIc (III) and a chromium chelate bearing a methyl substituent instead of the phenyl group IV were taken into the study. The intramolecular interactions of p-substituents of the ligand phenyl ring with the reduction and oxidation centres of the molecule of complex (followed electrochemically using LFER enabled to localize the corresponding electron transfer. The influence of the type of coordination, the substituent on the ligand phenyl ring and the central metal atom on oxidation and reduction potentials is discussed.
dcterms:title
Electrochemistry of Chromium(0) – Aminocarbene Complexes. The use of intramolecular interaction LFER for characterization of the oxidation and reduction centre of the complex Elektrochemie aminokarbenových komplexů chromu. Použití intramolekulárních interakcí (LFER) pro charakterizaci oxidačního a redukčního centra komplexu Electrochemistry of Chromium(0) – Aminocarbene Complexes. The use of intramolecular interaction LFER for characterization of the oxidation and reduction centre of the complex
skos:prefLabel
Elektrochemie aminokarbenových komplexů chromu. Použití intramolekulárních interakcí (LFER) pro charakterizaci oxidačního a redukčního centra komplexu Electrochemistry of Chromium(0) – Aminocarbene Complexes. The use of intramolecular interaction LFER for characterization of the oxidation and reduction centre of the complex Electrochemistry of Chromium(0) – Aminocarbene Complexes. The use of intramolecular interaction LFER for characterization of the oxidation and reduction centre of the complex
skos:notation
RIV/61388955:_____/05:00021174!RIV06-AV0-61388955
n4:strany
4911;4915
n4:aktivita
n11:Z n11:P
n4:aktivity
P(GA203/04/0487), Z(AV0Z40400503)
n4:cisloPeriodika
-
n4:dodaniDat
n7:2006
n4:domaciTvurceVysledku
n15:4441613
n4:druhVysledku
n14:J
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
519943
n4:idVysledku
RIV/61388955:_____/05:00021174
n4:jazykVysledku
n18:eng
n4:klicovaSlova
electroreduction; electrooxidation; cyclic voltammetry
n4:klicoveSlovo
n6:cyclic%20voltammetry n6:electrooxidation n6:electroreduction
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[121EF3ADF140]
n4:nazevZdroje
Electrochimica acta
n4:obor
n12:CG
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
6
n4:projekt
n16:GA203%2F04%2F0487
n4:rokUplatneniVysledku
n7:2005
n4:svazekPeriodika
50
n4:tvurceVysledku
Roháčová, J. Dvořák, D. Ludvík, Jiří Meca, L. Hoskovcová, I. Tobrman, T.
n4:zamer
n5:AV0Z40400503
s:issn
0013-4686
s:numberOfPages
5