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Table 5 Values of ΔH* and ΔS* for the oxidation of some chromium(III) complexes by periodate.

From: Inner-sphere oxidation of ternary iminodiacetatochromium(III) complexes involving DL-valine and L-arginine as secondary ligands. Isokinetic relationship for the oxidation of ternary iminodiacetato-chromium(III) complexes by periodate

complex

103 k1 (s-1)

ΔH* (kJ mol-1)

-ΔS* (JK-1 mol-1)

Reference

[CrIII(HIDA)(IDA)(H2O)]

1.09

12.3 ± 1

240 ± 7

15

[CrIII(HIDA)(Asp)(H2O)2]+

3.38

36.4 ± 3

179 ± 9

28

[CrIII(HIDA)(Val)(H2O)2]+

1.22

41.7 ± 1.5

162.5 ± 3.3

This work

[CrIII(HIDA)(Arg)(H2O)2]+

1.82c

15.9 ± 1.2

227 ± 5

This work

  1. ck1 = k3