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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Eur J Inorg Chem. 2014 Sep;2014(25):4123–4133. doi: 10.1002/ejic.201402082

Table 4.

Kinetic and thermodynamic parameters for reduction of Cbi(III) by H2S at pH 4.5 [for kobs(3)]

T / °C k6K1 [m−1s−1] k6 [s−1] k−6 [s−1]
35 163 ± 1 1.13 0.93 ± 0.02
25 96.3 ± 0.8 0.47 0.51 ± 0.01
15 62.7 ± 0.3 0.12 0.41 ± 0.01
5 35 ± 3 0.053 0.24 ± 0.04
ΔH≠(k) [kJ mol−1] +33 ± 1 7 ± 1 28 ± 4
ΔS≠(k) [J K−1 mol−1] −95 ± 3 −8 ± 3 −155 ± 12