Tuning Reactivity of Platinum(II) Complexes

Tuning Reactivity of Platinum(II) Complexes Tuning Reactivity of Platinum(II) Complexes

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Table S7.25: Average observed rate constants, kobs(2 nd ), for the displacement of ammine ligand in DecPt at varied temperatures in the range 15 to 35 °C while maintaining nucleophile concentration at ≈ 60x [DecPt]. 1/T, K -1 TU DMTU TMTU kobs(2 nd ), s -1 ln(k2/T) kobs(2 nd ), s -1 ln(k2/T) kobs(2 nd ), s -1 ln(k2/T) 0.00347 1.438 x 10 -4 -10.0871 3.781 x 10 -5 -11.4232 0.00341 2.164 x 10 -4 -9.6959 7.694 x 10 -5 -10.7298 6.608 x 10 -5 -10.8821 0.00335 3.174 x 10 -4 -9.3295 1.272 x 10 -4 -10.2442 0.00330 4.492 x 10 -4 -8.9990 1.956 x 10 -4 -9.8306 1.831 x 10 -4 -9.8967 0.00325 6.272 x 10 -4 -8.6815 3.063 x 10 -4 -9.3984 3.023 x 10 -4 -9.5115 ln(k 2(1 st ) /T) -4.0 -4.5 -5.0 -5.5 -6.0 -6.5 -7.0 -7.5 0.00320 0.00325 0.00330 0.00335 0.00340 0.00345 0.00350 1/T, K -1 60 TMTU TU DMTU Figure S7.28: Eyring plots forthe determination of the activation enthalpies and entropies for k2,1 st of all nucleophiles studied with DecPt complex.

ln(k nd 2(2 ) /T) -8.5 -9.0 -9.5 -10.0 -10.5 -11.0 -11.5 0.00320 0.00325 0.00330 0.00335 0.00340 0.00345 0.00350 1/T, K -1 61 TU DMTU TMTU Figure S7.29: Eyring plots forthe determination of the activation enthalpies and entropies for k2,2 nd of all nucleophiles studied with DecPt complex. Absorbance 0.155 0.150 0.145 0.140 0.135 0.130 0.125 2 4 6 8 10 12 Figure S7.30: UV-Vis spectra recorded for the DecPt complex in the pH range 2-10 at 25 °C. Inset: Plot of absorbance versus pH at 261 nm. pH

ln(k nd<br />

2(2 ) /T)<br />

-8.5<br />

-9.0<br />

-9.5<br />

-10.0<br />

-10.5<br />

-11.0<br />

-11.5<br />

0.00320 0.00325 0.00330 0.00335 0.00340 0.00345 0.00350<br />

1/T, K -1<br />

61<br />

TU<br />

DMTU<br />

TMTU<br />

Figure S7.29: Eyring plots forthe determination <strong>of</strong> the activation enthalpies and<br />

entropies for k2,2 nd <strong>of</strong> all nucleophiles studied with DecPt complex.<br />

Absorbance<br />

0.155<br />

0.150<br />

0.145<br />

0.140<br />

0.135<br />

0.130<br />

0.125<br />

2 4 6 8 10 12<br />

Figure S7.30: UV-Vis spectra recorded for the DecPt complex in the pH range 2-10 at<br />

25 °C. Inset: Plot <strong>of</strong> absorbance versus pH at 261 nm.<br />

pH

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