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The Study of Reduction Mechanism of N,N' Disubstituted Amidines by Means of Kalousek Commutator

J. Ševčík and J. Vacek

Department of Organic, Analytical and Physical Chemistry, Faculty of Natural Sciences, Palacký University, Olomouc


Abstract: A transistor Kalousek commutator was designed. For its construction, a polarized relay with a very short switching time was used as the proper switching element. This relay was excited by a transistor circuit and fed by a build-in battery. The commutator thus constructed allows a continuous change of switching frequency over a wide range (0—45 Hz). By means of this commutator, the character of the electrode process for the electroreduction of N,N-diphenylbenzamidine was investigated. It was found that the first reduction wave corresponded to an irreversible electrode process, whereas the second one was due to a reversible process. On the basis of this statement, a reduction mechanism for N,N'-disubstituted amidines was proposed

Full paper in Portable Document Format: 237a501.pdf


Chemical Papers 23 (7) 501–506 (1969)

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