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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Intramolekulární elektronová interakce dvou typů dikarbonylových slouočenin a jejich derivátů – elektrochemická a kvantově chemická studie
 Ludvík, Jiří ; Celik, H. ; Jirkovský, Jaromír ; Zuman, P.
In the frame of studies of molecules with two redox centers, two isomeric monooximes derived from aryl-alkyl 1,2-diketones were electrochemically investigated. Whereas 1-phenyl-2-oxo-1-oximinopropane is reduced in acidic media according to the mechanism typical for oximes, that means by fou electrons yielding aminoketone, which is further reduced bielectronically under splitting of ammonia, its isomer 1-phenyl-1-oxo-2-oximinopropane is reduced to the stable 1-hydroxy-2-aminoolefine (enol form) and this corresponds to the reduction mechanism of benzil. It is surprising that the unsymmetric molecule behaves like the symmetric one. Basing on the electrochemical data and their correlation with quantum chemical calculations it was possible to explain this phenomenon.
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Electrochemical Behavior of Chosen Chinoxaline-2-on Derivates on the Mercury Electrode
 Zimpl, M. ; Navrátil, Tomáš ; Kotouček, M. ; Barták, P. ; Zuman, P.
The mechanism of the electrochemical behavior of 3-substituated derivates of chinoxaline-2-on on the mercury electrode was studied with the aim to explain the behavior of these drugs in human body. Tast and normal pulse polarography, direct current, cyclic, differential voltammetry, elimination voltammetry with linear scan etc. were applied.
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Chemical and Electrochemical Transformations in 1,2,4-Triazine Herbicides
 Riedl, F. ; Ludvík, Jiří ; Volke, Jiří ; Zuman, P. ; Liška, F.
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