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- W2330191022 abstract "The AC-polarographic determination of the chloride ion concentration suggests, that butyltin chlorides are completely dissociated in aqueous solution within the concentration ranges of the polarographic method. By means of pH-measurements of the alkyltin ions primarily formed by BuSnCl3, Bu2SnCl2 and Bu3SnCl their complete hydrolysis in the concentration range up to 1 x 10-4 M was established. The reduction potentials of the organotin halides move towards more negative values in all investigated electrolytes corresponding to the decreasing polarity with increasing degree of substitution. Parallel to an increase in polarizability the potentials are shifted to more positive values when the chain lengths of the substituents of alkyltin derivatives increase, corresponding to a more facile reduction. Aus der wechselstrompolarographischen Bestimmung der Chlorid-Ionen-Konzentration ergibt sich, dass die Butylzinn-chloride in polarographischen Konzentrationsbereichen in Wasser vollständig dissoziiert sind. Mit Hilfe der pH-Messung wird festgestellt, dass die aus BuSnCl3, Bu2SnCl2 und Bu3SnCl primär entstehenden Alkylzinn-Ionen im Konzentrationsbereich bis 1·10-4 M vollständig hydrolysieren. Die Reduktionspotentiale der Organozinn-halogenide wandern in allen untersuchten Leitelektrolyten mit steigendem Substitutionsgrad entsprechend der abnehmenden Polarität nach negativeren Werten. Mit wachsender Kettenlänge der Substituenten ist bei den Alkylzinnderivaten parallel zur zunehmenden Polarisierbarkeit eine Verschiebung der Scheitelpotentiale nach positiveren Werten zu beoabachten, also eine Erleichterung der Reduktion." @default.
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- W2330191022 date "1968-11-01" @default.
- W2330191022 modified "2023-09-25" @default.
- W2330191022 title "Untersuchungen an zinnverbindungen" @default.
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- W2330191022 doi "https://doi.org/10.1016/s0022-328x(00)86328-7" @default.
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