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• W2085153982 abstract "The reactions of (CH3)4Pb, (n-C3H7)4Pb, (n-C4H9)4Pb, (C6H5)4Pb, (p-CH3OC6H4)4Pb, (CH3)4Sn, (i-C3H7)4Sn and (n-C4H9)4Sn with hydrochloric acid in methanol or a methanol/benzene mixture proceed, as following the reaction conductometrically showed, as competitive, consecutive 2nd order reactions. The rate constants of the two partial reactions were calculated both with an analog-computer and the “time-ratio” methods. The values of k1 and k2 are greater for the acidolysis of the organolead compounds than for the analogous tin compounds. k1 decreases with increasing size of the alkyl groups, on the contrary, k2 shows a tendency to increase. The difference in the reactivity of the various series will be traced back to the dependence on the one hand of the MC bond energy and on the other hand of the solvation energies. Die Umsetzungen von (CH3)4Pb, (n-C3H7)4Pb, (n-C4H9)4Pb, (C6H5)4Pb, (p-CH3OC6H4)4Pb, (CH3)4Sn, (i-C3H7)4Sn und (n-C4H9)4Sn mit Chlorwasserstoff in Methanol bzw. einem Methanol/Benzol-Gemisch verlaufen; wie die konduktometrische Verfolgung der Reaktionen zeigte, als konkurrierende Konsekutivreaktionen 2. Ordnung. Die Geschwindigkeitskonstanten der beiden Teilreaktionen werden sowohl mit dem Analogrechner als auch mit Hilfe der “Time-ratio”-Methode berechnet. Die Werte von k1 und k2 sind bei Acidolysen der Organobleiverbindungen grösser als bei den analogen Zinnverbindungen. Mit zunehmender Grösse der Alkylgruppen nimmt k1 ab, k2 zeigt hingegen zunehmende Tendenz. Die Unterschiede der verschiedenen Reaktivitätsreihen werden auf Abhängigkeiten der Bindungsenergien der MC-Bindung einerseits und Solvatationsenergien andererseits zurückgeführt." @default.
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• W2085153982 date "1970-09-01" @default.
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• W2085153982 title "Reaktionen von organometallverbindungen IV. Über den einfluss des organischen liganden und des zentralatoms auf die geschwindigkeit der acidolyse von tetraorganoplumbanen und tetraorganostannanen" @default.
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• W2085153982 doi "https://doi.org/10.1016/s0022-328x(00)80279-x" @default.
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