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| Description
| - 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 π-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 π-acceptors) present. (en)
- Byla připraven a a elektrochemicky zkoumána série aminokarbenových komplexů chromu, wolframu a železa. Byly sledovány vlivy způsobu koordinace, substituce na fenylovém kruhu ligandu a centrálního kovového atomu jak na na oxidační, tak na redukční potenciál a závislosti byly vyhodnoceny metodou LFER. Rozdíl mezi hodnotami oxidačního a redukčního potenciálu odráží rozdíl energií HOMO a LUMO orbitalů. Redukce daných karbenových komplexů závisí především na povaze ligandu a jeho substituci, ale nezávisí na povaze centrálního kovu. Na druhou stranu oxidace je téměř nezávislá na substituci ligandu, ale silně ji ovlivňují povaha centrálního kovu a počet koordinovaných karbonylových skupin, tj. počet ligandů s π - akceptorovou schopností. (cs)
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| Title
| - M(0)-Aminokarbenové komplexy (M = Cr, W, Fe): Redox chování modifikované kovem a/nebo změnou ligandu. (cs)
- 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)
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| skos:prefLabel
| - M(0)-Aminokarbenové komplexy (M = Cr, W, Fe): Redox chování modifikované kovem a/nebo změnou ligandu. (cs)
- 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)
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| skos:notation
| - RIV/60461373:22310/06:00017013!RIV07-GA0-22310___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/06:00017013
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Fischer carbene complexes; LFER, electrochemical behaviour; polarography; cyclic voltammetry; redox potential; intramolecular electronic communication (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...i/riv/kodPristupu
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...telVyzkumneZpravy
| - The Electrochemical Society
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Ludvík, Jiří
- Dvořák, Dalimil
- Roháčová, Jana
- Hoskovcová, Irena
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| http://localhost/t...ganizacniJednotka
| |
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