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| Description
| - Selected group of compounds yielding radical anions or cations will be characterized with regard to kinetics of electron transfer, radical reactivity and their chemical reactions. Detailed knowledge of reaction pathways of radicals in free state will enable to identify processes which can be suppressed or accentuated by inclusion of radical forms to a molecular cavity of an inert host molecule. We propose to seek means how to stabilize radicals for application in aquenous medium. Project will use a large choice of electrochemical relaxation methods available or developped in the group of the applicant. This includes voltammetry from mV/s to 50 kV/s, steady state methods on ultramicroelectrodes, electrochemical impedance spectroscopy, UV-Vis and FTIR spectroelectrochemistry and other. Certain new type of compounds will become available within the framework of current cooperation with foreign partners (France, Germany, Italy). (en)
- Vybrané skupiny látek, které poskytují radikálové anionty nebo kationty budou charakterizovány z hlediska kinetiky přenosu elektronu, reaktivity radikálů a jejich následných chemických reakcí. Detailní znalost mechanismu reakcí radikálů ve volném stavu umožní identifikovat proces, které jsou potlačeny nebo naopak podpořeny v případě, že radikálofé formy mohou být začleněny do molekulární kavity inertní hostitelské molekuly. Budeme hledat způsoby, jak reaktivní formy stabilizovat pro aplikace ve vodném prostředí. Projekt bude využívat celou škálu relaxačních elektrochemických technik, dostupných a vypracovaných v laboratoři navrhovatele: voltammetriki od mV/s do 50kV/s, stacionární metody na ultramikroelektrodách, elektrochemickou impedanci. UV-Vis a FTIR spektroelektrochemii. Některé nové typy studovaných látek budou získány v rámci dosavadní spolupráce se zahraničními partnery (Francie, SRN, Itálie).
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| Title
| - Redox reactions of free radicals, reactivity in presence of host molecules (en)
- Redox reakce volných radikálů, reaktivita v prostředí hostitelských molekul
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| skos:notation
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| http://linked.open...avai/cep/aktivita
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| http://linked.open...kovaStatniPodpora
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| http://linked.open...ep/celkoveNaklady
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| http://linked.open...datumDodatniDoRIV
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| http://linked.open...i/cep/druhSouteze
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| http://linked.open...ep/duvernostUdaju
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| http://linked.open.../cep/fazeProjektu
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| http://linked.open...ai/cep/hlavniObor
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| http://linked.open...hodnoceniProjektu
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| http://linked.open...vai/cep/kategorie
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| http://linked.open.../cep/klicovaSlova
| - redox reactions; electrochemistry; free radicals; host-guest complexes; electron transfer; reactivity; mechanism (en)
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| http://linked.open...ep/partnetrHlavni
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| http://linked.open...inujicichPrijemcu
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| http://linked.open...cep/pocetPrijemcu
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| http://linked.open...ocetSpoluPrijemcu
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| http://linked.open.../pocetVysledkuRIV
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| http://linked.open...enychVysledkuVRIV
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| http://linked.open...lneniVMinulemRoce
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| http://linked.open.../prideleniPodpory
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| http://linked.open...iciPoslednihoRoku
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| http://linked.open...atUdajeProjZameru
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| http://linked.open.../vavai/cep/soutez
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| http://linked.open...usZobrazovaneFaze
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| http://linked.open...ai/cep/typPojektu
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| http://linked.open...ep/ukonceniReseni
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| http://linked.open.../cep/vedlejsiObor
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| http://linked.open...ep/zahajeniReseni
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| http://linked.open...jektu+dodavatelem
| - Objasněna elektrochemie radikálů viologenů, helicenů, fullerenu, nitrolátek a organometalických komplexů. Inklusní komplex fulerenu konvertuje dusíku na amoniak za mírných podmínek. Nalezen nový typ kationtové katalýzy a oscilačního systému. (cs)
- Electrochemistry of radicals of viologens, helicenes, fulleren and nitrocompounds was scrutinized. Inclusion complex of fulleren catalyzes nitrogen-to-ammonia conversion at mild conditions. New cationic catalysis and oscillations were found. (en)
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| http://linked.open...tniCyklusProjektu
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| http://linked.open.../cep/klicoveSlovo
| - redox reactions
- electrochemistry
- electron transfer
- free radicals
- host-guest complexes
- reactivity
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| is http://linked.open...vavai/riv/projekt
of | - Surface interactions of s-triazine-type pesticides. An electrochemical impedance study
- Controlling Metal/Ligand/Metal Oxidation State Combinations by Ancillary Ligand (L) Variation in the Redox Systems [L2Ru(.mu.boptz)RuL2]n, boptz=3, 6-bis(2-oxidophenyl)- 1,2,4,5 tetrazine and L=acetylacetonate, 2,2´-bipyridine, or 2-phenylazopyridine
- Mixed-valent and radical states of complexes [(bpy)(2)M(.mu.-abpy)M´(bpy)(2)](n+), M,M´ = Ru or Os, abpy=2,2´-azobispyridine: Electron transfer vs. hole transfer mechanism in azo ligand-bridged complexes
- Double-layer effects and distance dependence of electron transfer in reduction of nitro aromatic radical anions
- Search for a one-electron reduction of the cation radical of an %22extended viologen,%22 p-phenylene-bis-4,4´(1-aryl-2,6-diphenylpyridinium)
- Metal-induced reductive ring opening of 1,2,4,5-tetrazines: Three resulting coordination alternatives, including the new non-innocent 1,2-diiminohydrazido(2-) bridging ligand system
- Reductive Cleavage of Halides in Decomposition of Substituted Benzonitrile Pesticides
- Search for a One-Electron Reduction of the Cation Radical of an Extended Viologen , p-Phenylene-bis-4,4'-(1-Aryl-2,6-Diphenylpyridinium)
- Elektrochemie vybraných halogenových pesticidů a jejich komplexy s cyklodextriny
- Electrochemical Behaviour of Organonickel Complexes: Monovalent – Divalent – Trivalent Nickel
- Reversibly Reducible cis-Dichloroplatinum(II) and cis-Dichloropalladium(II) Complexes of Bis(1-methylimidazol-2-yl)glyoxal
- Adsorption of tentacled tetragonal star connectors, C4R4-Co-C-5(HgX)(5), on mercury
- Electrochemical conversion of dinitrogen to ammonia mediated by a complex of fullerene C-60 and gamma-cyclodextrin
- On the convergence of the physicochemical properties of [n]helicenes
- Elektrochemická fixace dusíku v přítomnosti komplexu [C60 - (.gamma.CD)2]
- Elektrochemické studium degradace přírodních barviv na uměleckých památkách
- A radical-bridged bis(ferrocenylcopper(I)) complex: Structural identity, multifrequency EPR, and spectroelectrochemistry
- Pseudo-base formation in the attempted synthesis of a conjugatively coupled bis(nitrosylruthenium) complex and spectroelectrochemistry of bipyrimidine-bridged dinuclear Ru(terpy)X precursor compounds (X = Cl, NO2)
- Cationic catalysis and hidden negative differential resistance in reduction of radical anion of nitrobenzene
- Electrochemical impedance of nitrogen fixation mediated by fullerene-cyclodextrin complex
- Establishing the Chelating .alpha.-Azocarbonyl Function in .pi.- Acceptor Ligands
- Reduction of substituted benzonitrile pesticides
- Heterogeneous electron transfer of pesticides. Current trends and applications
- New electrochemical oscillator based on the cation-catalyzed reduction of nitroaromatic radical anions
- Three-Spin System with a Twist: A Bis(semiquinonato)copper Complex with Non-Planar Copper(II) Center
- 3,6-Bis(2'-pyridyl)pyridazine (L) and its deprotonated form (L-H+)- as ligands for (acac)2Run+ or (bpy)2Rum+: Investigation of mixed valency in [{(acac)2Ru}2(.mu.-L-H+)] and [{(bpy)2Ru}2 (.mu.-L-H+)]4+ by spectroelectrochemistry and EPR
- Widely Separated Reduction Processes of abpy-Coupled Areneosmium(II) Reaction Centers (abpy = 2,2'-Azobispyridine): Stabilization of the Radical Intermediate and of the Os0OsII State
- Complex Series [Ru(tpy)(dpk)(X)]n+ (tpy = 2,2':6',2''-Terpyridine; dpk = 2,2'-Dipyridyl Ketone; X = Cl-, CH3CN, NO2-, NO+, NO., NO-): Substitution and Electron Transfer, Structure, and Spectroscopy
- One-electron reduction of an %22extended viologen%22 p-phenyle-bis-4,4´-(aryl-2,6-diphenylpyridinium) dication
- Electrochemical microbead-based immunoassay using an (.eta.5-cyclopentadienyl)tricarbonylmanganese redox marker bound to bovine serum albumin
- Theoretical and experimental evidence for a new kind of spin-coupled singlet species: Isomeric mixed-valent complexes bridged by a radical anion ligand
- A new coordination mode of the photometric reagent gilyoxalbis(2-hydroxyanil) (H2gbha): Bis-bidentate bridging by gbha2- in the redox series {(.mu.-gbha)[Ru(acac)2]2}n, including a radical-bridged diruthenium(III) and a RuIII/RuIV intermediate
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| is http://linked.open...vavai/cep/projekt
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