Issue 7, 1987

The base catalysed hydrolysis of trans-dichlorobis-(1,2-diaminoethane)-cobalt(III) and -(1,3-diaminopropane)cobalt(III) cations: rate-limiting proton transfer

Abstract

The base hydrolysis of trans-[Co(en)2Cl2]+(en = 1,2-diaminoethane) has been re-examined over the temperature range 5–45 °C. The plot of In (kOH/T)vs. T–1 is curved above 25 °C indicating a change towards rate-limiting deprotonation at higher temperatures. The rate constants for the base hydrolysis of trans-[Co(tn)2Cl2]+[tn = trimethylenediamine (1,3-diaminopropane)] are ca. 20 times greater than those for the (en)2 complex in the range 5–10 °C but the temperature dependence suggests that deprotonation is rate-limiting even at the lowest temperatures studied.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1987, 1775-1778

The base catalysed hydrolysis of trans-dichlorobis-(1,2-diaminoethane)-cobalt(III) and -(1,3-diaminopropane)cobalt(III) cations: rate-limiting proton transfer

C. Blakeley and M. L. Tobe, J. Chem. Soc., Dalton Trans., 1987, 1775 DOI: 10.1039/DT9870001775

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