| Quencher | [Ru(bpy)3]2+ | [Ru(dmbpy)3]2+ | ||
| Ka (M−1) | krad (s−1) | Ka (M−1) | krad (s−1) | |
| 1,4-benzoquinone | 2.1 × 10 4 | 4.09 × 10 5 | 4.71 × 10 4 | 4.62 × 10 5 |
| 2-methyl-1, 4-benzoquinone | 1.17 × 10 5 | 7.10 × 10 5 | 1.93 × 10 4 | 1.15 × 10 6 |