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. 2024 Jan 25;15(11):3957–3970. doi: 10.1039/d3sc05450k

PCET rate constants at pH 5.5 and 8.5 for 2MP-α3C and 4MP-α3C with [Ru(L)3]3+ oxidants and their Ru3+/2+ potentials.

Oxidant pH k PCET (M−1 s−1) E°a (mV vs. NHE)
2MP-α 3 C
Ru(dmb)33+ 5.5(±0.1) 2.8 × 103 +1100
Ru(bpy)33+ 5.5(±0.1) 1.5 × 104 +1260
Ru(dmb)33+ 8.5(±0.1) 7.7 × 105 +1100
Ru(bpy)33+ 8.5(±0.1) 4.8 × 106 +1260
Ru(deeb)33+ 8.5(±0.1) 3.2 × 107 +1540
4MP-α 3 C
Ru(dmb)33+ 5.5(±0.1) 4.4 × 103 +1100
Ru(bpy)33+ 5.5(±0.1) 2.1 × 104 +1260
Ru(dmb)33+ 8.5(±0.1) 1.5 × 106 +1100
Ru(bpy)33+ 8.5(±0.1) 6.1 × 106 +1260
Ru(deeb)33+ 8.5(±0.1) 5.4 × 107 +1540
a

Error bars are estimated to be ±30 mV.