Tuning Reactivity of Platinum(II) Complexes

Table S5.28: Average observed rate constants, kobs(3 rd ), at 298.15 K, for the
k st
obs(1 ) , in s-1
displacement of the second aqua ligand of pht with a series of
nucleophiles at different concentrations.
[NU]/ M kobs(3 rd ), s -1
DMTU TMTU TU
0.00138 1.4045 x 10 -5 9.885 x 10 -7 2.520 x 10 -5
0.00276 2.8165 x 10 -5 2.059 x 10 -6 4.869 x 10 -5
0.00414 4.2236 x 10 -5 3.769 x 10 -6 6.998 x 10 -5
0.00552 5.6060 x 10 -5 6.047 x 10 -6 9.727 x 10 -5
0.0069 7.0226 x 10 -5 7.482 x 10 -6 1.198 x 10 -4
0.0015
0.0012
0.0009
0.0006
0.0003
TU
DMTU
TMTU
0.0000
0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007
[NU]/ mol dm -3
Figure S5.33: Concentration dependence of kobs(1 st ) for the displacement of first aqua
ligand in pht by thiourea nucleophiles, pH = 2.0, T = 298.15 K, I = 0.10 M
(0.01 M HClO4, adjusted with NaClO4).
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